Index to the US Patent Classification

Index to the US Patent Classification

What follows is part of the Index to the US Manual of Classifications for patents. As you scroll through the list and encounter a class/subclass of interest, you can jump back to the top and retreive patent titles by entering the class/subclass in the box below.


Enter a class/subclass code here to get a list of patent titles. Use any of the following forms:
363-131 121-55A 14-.5
that is, no embedded spaces, class and subclass seperated by a dash, and any subclass letters capitalized. Currently Design Patent titles (those in the classes of the form Dxx.yy) are not retreivable.

Enter class/subclass code:


CONVEYOR (SEE CARRIER; CHUTE; FEEDER) 193
  AIR BLAST &/OR VACUMM .............29/DIG.78
  ARTICLE SUPPORT FOR LABEL AFFIXING 156/556+
  BEARING SUPPORT FOR ROLLER ........384/418+
  BELT (SEE ENDLESS BELOW)
     ACETYLENE GENERATOR CARBIDE
       FEED .........................48/39
     AUTOMATIC GAUGING APERTURED ....209/681
     AUTOMATIC GAUGING POCKETED .....209/685
     AUTOMATIC GAUGING SLOTTED ......209/665+
     COATED SURFACE SEPARATOR
       RECEIVER WITH ................209/63
     MAGAZINE DISPENSER .............221/76+
     MAGAZINE DISPENSING SLENDER
       ARTICLE ......................221/76+
     MANUAL ASSORTING ...............209/705
     MANURE SPREADER TYPE ...........239/650+
     MATTRESS FILLING ...............53/255+
     PAPER PASTING STRIP CUTTER FEED 156/510
     POWER DRIVEN ...................198
     SIFTERS ........................209/307+
     SIFTING LIQUID TREATMENT .......209/272
     STRATIFIERS LIQUID TREATMENT ...209/428+
     TEXTILE SMOOTHING TRANSFER .....38/8+
  BUTCHERING ........................452/177+
  CENTRIFUGAL FLUID
     DISTRIBUTOR FEED ...............239/215
  CHAIN OR BELT .....................29/DIG.73
  CHUTE .............................193/2.R+
     APERTURES AUTOMATIC GAUGING ....209/682
     DRYING APPARATUS ...............34/165+
     GASEOUS SUSPENSION ASSORTING ...209/149
     GAUGING AUTOMATIC BY ROLLING ...209/696
     LIQUID SUSPENSION ASSORTING ....209/196
       RECIPROCATING ................209/196
       STATIONARY ...................209/202
     MANUAL ASSORTING ...............209/703+
     MOVABLE BED STRATIFIERS ........209/479+
       LIQUID TREATMENT, SPIRAL .....209/434
     PLURAL DESTINATION CONVEYOR & ..198/359
     PNEUMATIC STRATIFIERS
       MOVABLE BED ..................209/471+
       STATIONARY BED ...............209/477
     POCKETS AUTOMATIC GAUGING WITH .209/684
     POWER DRIVEN CONVEYOR COMBINED .198/523+
     STATIONARY BED LIQUID TREATMENT
       STRATIFIER ...................209/458+
       STRATIFIERS RECIPROCATING ....209/437+
     STRATIFIERS ROTATING ...........209/444
       RECIPROCATING ................209/435
  CHUTES SKIDS GUIDES WAYS ..........193
  COATED SURFACE SEPARATOR209/65
     RECEIVERS WITH .................209/65+
  COOKING APPARATUS .................99/443.R
     BEVERAGE INFUSER ...............99/289.R
     BOILER OR DEEP FAT FRYER .......99/404+
     CORN POPPING ...................99/323.9
     FILLED RECEPTACLE COOKER .......99/360+
     GRIDDLE ........................99/423+
     MOLDING SUPPORT ................99/427
     SMOKE TREATING .................99/467+
     SPIT OR EMPALING TYPE ..........99/420
     TOASTER OR BROILER .............99/386+
     WAFFLE IRON TYPE COOKER ........99/373
  DESIGN ............................D34/29+
  DRYING
     HOLLOW ARTICLE .................34/105
     HOUSES CONTAINERS WITH .........34/201+
     REMOVABLE SHELF OR TRAY
       HANDLING .....................34/194
     STATIONARY RECEPTACLE WITH .....34/179+
     TREATED MATERIAL HANDLING ......34/236
  DUMPING SCOW PLATFORM .............114/34
  EGG CANDLING ......................356/55+
  ELECTROLYTIC APPARATUS WORK .......204/198+
  ENDLESS
     ADJUSTABLE MATERIAL DEFLECTOR
       FOR ..........................222/290
     BUCKET DITCHER LONGITUDINAL ....37/359
     BUCKET DITCHER TRANSVERSE ......37/360
     CHAIN ..........................198/643
       WITH PUSHER ..................198/725+
     CONTAINER STERILIZING ..........422
     COOPERATING COMMINUTING ........241/200
     DISPENSER ......................222/415
     DISPENSING TRAP CHAMBER ON .....222/371
     DRAGLINE SCOOP COMBINED ........414/570
     DRYING HOUSE PLURAL RUN ........34/207
     DRYING HOUSE SINGLE RUN BOTH
       ACTIVE .......................34/208
     ELECTROLYTIC MOVABLE ELECTRODE
       WORK .........................204/202+
     ENDLESS DIGGER .................37/462+
     FLEXIBLE SHEET DRYING ..........34/162
     FURNACE TYPE CHARGING ..........414/147+
     FURNACE TYPE RECIPROCATING .....414/586+
       CHARGER COMBINED .............414/198
     GANGWAYS .......................14/70
     GRAIN HULLING ..................99/616
     HOIST COMBINED .................414/564
     MATERIAL DEFLECTOR .............222/408
     PLOW DITCHER LONGITUDINAL ......37/366+
     PLOW DITCHER LONGITUDINAL AND ..37/368+
       TRANSVERSE ...................37/369
     PLOW ROAD GRADER CONVEYOR ......37/389+
       WHEEL COMBINED ...............37/391+
     PLOW ROAD GRADER TRANSVERSE ....37/389
     PNEUMATIC STACKER COMBINED .....406/77+
     POWER DRIVEN ...................271/194+
     PRODUCT REMOVER ................83/155.1
     ROTARY DIGGER ..................37/190
     SELF LOADING EXCAVATING VEHICLE 37/304+
     SHEET DELIVERING ...............271/198+
     SHEET DELIVERING TO CURTAINS ...271/67
     SHEET DELIVERING TO FLIES ......271/66+
     SHEET DELIVERING TO OTHER
       CONVEYORS ....................271/69+
     SHEET FEEDING ..................271/264+
     SHEET FEEDING AND DELIVERING ...271/7
     SHEET FEEDING AND SEPARATING ...271/12+
     SHEET FEEDING DELIVERING AND
       SEPARATING ...................271/6
     VEHICLE UNLOADING EXTERNAL .....414/373+
       HORIZONTAL MOVEMENT ..........414/353
       REORIENTING SUPPORT ..........414/356
       REPOSITIONING SUPPORT ........414/351
     WHEEL EXCAVATOR LONGITUDINAL ...37/96
     WHEEL EXCAVATOR TRANSVERSE .....37/97
  EXCAVATOR .........................37/360+
     DITCHERS .......................37/347+
     RAILWAY SNOW ...................37/208
     ROAD GRADER ....................37/381+
     ROADWAY SNOW ...................37/237+
  FLEXIBLE ..........................29/DIG.99
  FLUID CURRENT .....................406
     BOILER OR DEEP FAT FRYING ......99/406
     DIAMAGNETIC SEPARATION OF
       SOLIDS .......................209/212
     DRYING APPARATUS TREATED
       MATERIAL .....................34/57.R
     DRYING PROCESS MATERIAL
       SUSPENSION OR ................34/10
     ELECTROSTATIC SEPARATION OF
       SOLIDS .......................209/127.1+
     FLUID CONVEYOR OR APPLICATOR ...29/DIG.63
     FLUID HANDLING SYSTEM CLEANERS .137/238+
     INSECT DUSTING MACHINE WITH ....43/141
     INSECT POWDER DUSTERS ..........239/650+
     MORTAR MIXER PROCESSES .........366/3+
     MORTAR MIXERS ..................366/10
     PARAMAGNETIC SEPARATION OF
       SOLIDS .......................209/213+
     RAILWAY SNOW EXCAVATOR .........37/202
     ROTARY MEAT COMMINUTOR COMBINED 241/38+
     SAND BLAST ABRADING ............51/410+
     SEPARATING OPERATIONS COMBINED .209/12+
     SEPARATION OF SOLIDS ...........209/132+
     SEPARATION OF SOLIDS BY
       ADHESION .....................209/45+
     SEPARATION WITH HEAT TREATMENT .209/11
     SHEET DELIVERING ...............271/306
     SIFTING ........................209/233+
     SOLIDS COMMINUTING APPARATUS
       WITH .........................241/38+
     SOLIDS COMMINUTING PROCESSES
       WITH .........................241/15+
     STRAND OR WEB FEEDING ..........226/97
     STRATIFIERS ....................209/422+
     TRACK SANDER PIPE CLEANING .....291/43
     TRACK SANDERS ..................291/3+
     TREATMENT PRECEDENT TO
       SEPARATION ...................209/3+
     TREATMENT SUBSEQUENT TO
       SEPARATION ...................209/10
  FLUID PRESSURE TESTING FOR
     LEAKAGE ........................73/41+
  GARBAGE AND SEWAGE FURNACE ........110/255+
  GAS AS A ..........................29/DIG.81
  GASEOUS SUSPENSION ASSORTING
     FEEDING ........................209/147+
  GLASS ANNEALING ...................432/121+
  HARVESTER
     CUTTING BINDING COMBINED .......56/131+
     CUTTING COMBINED ...............56/153+
     CUTTING THRESHING COMBINED .....56/122+
     MARINE .........................56/9
     MOTOR CUTTER AND DETACHABLE ....56/3+
     MOTOR CUTTER COMBINED ..........56/14.5
  HEAT EXCHANGE .....................165/120+
     CHAMBER ........................165/120+
  LINEAR MOTOR ......................198/619
  LIQUID SUSPENSION ASSORTING
     FEEDING ........................209/184
  LIQUID TREATMENT STRATIFIERS
     ROTATING WITH ..................209/452
  LIQUID TREATMENT STRATIFIERS
     STATIONARY WITH ................209/461+
  LUBRICATOR ........................184/12
     FORCE FEED .....................184/61+
     SYSTEMS ........................184/6+
  MATERIAL FOR ......................198/957*
  MINING MACHINE ....................299/64+
  MOVING WAVE .......................198/630
  POTATO DIGGER SPIRAL ..............171/113
  POWER DRIVEN ......................198
  PRESS COMBINED ....................10/144+
  QUENCHER FOR THERMOLYTIC
     DISTILLATION ...................202/230
  RECEPTACLE POSITIONING FOR
     FILLING ........................141/129
  RECIPROCATING
     DISCHARGE ASSISTANTS SETS OF ...222/275+
     DISPENSING .....................222/409
     DISPENSING TRAP CHAMBER ........222/361+
     FURNACE CHARGING ...............414/194
     FURNACE FUEL FEED ..............110/109
     PLURAL SOURCE DISPENSING
       UNITARY ......................222/137
     POWER DRIVEN ...................198/750+
       PUSHER .......................198/736+
     POWER DRIVEN PUSHER ............198/736+
     SERIES DISCHARGE ASSISTANTS ....222/243+
       ROTARY AND ...................222/233+
     SHEET DELIVERING ...............271/84+
     SHEET FEEDING ..................271/267+
     SHEET SEPARATING AND FEEDING ...271/14
     THERMOLYTIC DISTILLATION .......202/119
     TRANSVERSE TO MATERIAL FLOW ....222/200
     VIBRATING DISPENSER BOTTOM .....222/199
     VIBRATING TROUGH ...............198/750
  REFRIGERATION COMBINED
     COOLED ARTICLE .................62/378+
     DOOR MOUNTED ...................62/377
     PROCESS ........................62/62+
     SOLID REFRIGERANT ..............62/379+
  RESIDUE OR SEDIMENT MOVER .........210/523+
  ROASTER TYPE COMBINED PEELER OR    99/483
     PARER ..........................99/483
  ROBOT COOPERATING WITH ............901/7*
  ROLLER ............................193/35.R+
     LIVE ROLLS .....................198/780+
       ROTARY .......................198/624
  ROTARY
     ACETYLENE GENERATOR CARBIDE     48/48+
       FEED .........................48/48+
     DISCHARGE ASSISTANTS SETS OF ...222/271+
     DISPENSING .....................222/410+
     DISPENSING TRAP CHAMBER ........222/367+
     DRYING APPARATUS ...............34/184+
     ELECTROLYTIC WITH WORK .........204/199+
     GRAVITY FLOW DRYER WITH ........34/166
     HEAT EXCHANGE CYLINDER WITH ....165/120+
     HEAT EXCHANGE HORIZONTAL .......165/88
     HEAT EXCHANGE VERTICAL .........165/89+
     MERCURIAL ADHESION SEPARATING ..209/70
     POWER DRIVEN ...................198
     ROTATING DRUM SIFTER ...........209/296
     SERIES DISPENSING MEANS ........222/236+
     SERIES DISPENSING MEANS
       RECIPROCATING AND ............222/233+
     SHEET DELIVERING ...............271/314+
     SHEET FEEDING ..................271/275+
  SCALES COMBINED ...................198/502.1+
  SCREW .............................198/657+
     ACETYLENE GENERATION CARBIDE
       FEED .........................48/54
     CAM OR SCREW CONVEYOR ..........29/DIG.1
     CENTRIFUGAL FLUID
       DISTRIBUTOR FEED .............239/218.5
     DITCHER ........................37/351+
     EARTH BORING TOOL ..............175/394+
     FURNACE FUEL FEEDER ............110/110
     PNEUMATIC CONVEYOR FEED ........406/56+
     POTATO DIGGER ..................171/134
     ROTARY DISCHARGE ASSISTANT .....222/412+
     SERIES ROTARY DISCHARGE
       ASSISTANTS ...................222/240
     THERMOLYTIC DISTILLATION .......202/118
  SELF LOADING VEHICLE ..............414/467+
  SHEET FEEDING AND DELIVERING ......271
  SIFTER ............................209/261+
     DISCHARGING ....................209/257
     DISCHARGING AND VALVE ..........209/256
     FEEDING ........................209/247+
     FEEDING AND DISCHARGING ........209/241
     FEEDING HOPPER .................209/245
     PLANE RECIPROCATING WITH .......209/320+
     ROTATING DRUM COMBINED .........209/293+
     SUPERPOSED PLANE WITH
       INTERMEDIATE .................209/316
  STORE SERVICE .....................186
  THERMOLYTIC DISTILLATION RETORT ...202/117+
  THRESHING MACHINE DUST ............460/117
  THROWER ...........................198/638+
     FURNACE CHARGING ...............414/193
     SCATTERING UNLOADER ............239/672+
     TRACK SANDER ...................291/32
  TRANSVERSING WALL APERTURE ........198/950*
  TURNING CIGARETTES END FOR END ....198/951*
  TYPESETTING MACHINE ...............276/16+
  WASHER TYPE COMBINED PEELER OR
     PARER ..........................99/623+
  WASHING APPARATUS HAVING
     BRUSHING SCRUBBING ETC .........15/3+
     LIQUID CONTACT WITH SOLIDS .....134
  WASHING APPARATUS HAVING ENDLESS ..137/124+
     BOTTLE BRUSHING ................15/60+
     CONTROL BY WORK OR WORK HOLDER .134/48
     SEQUENTIAL STATIONS WORK
       TRANSFER .....................134/67+
     WORK TRANSFER ..................134/70+
  WOOD CUTTING MACHINE DUST .........144/252.R
  WOODEN FLIGHT MAKING MACHINE ......144/10

CONVOLUTE WIND ...................... 242
  LAMINATED ARTICLE MAKING ..........156
  PAPER TUBE MACHINE ................493/303+

COOKER & COOKING
  BARBECUE UNIT .....................D07/332+
  COMMERCIAL EQUIPMENT ..............D07/323+
  DIGESTER ..........................422/307+
  ELECTRIC OVENS ....................219/391+
  ELECTRIC VESSELS ..................219/438+
  ELECTRIC VESSELS AND STANDS .......219/429+
  FOOD ..............................99/324+
     NON-COOKING HEAT TREATMENT .....99/483
  HEAT SOURCE .......................D07/362+
  HOUSEHOLD APPLIANCE ...............D07/323+
  HOUSEHOLD CONTAINER ...............D07/354+
  INDUCTION HEATED ..................219/10.493
  POPCORN ...........................D07/325
  SOLAR .............................D07/324
  SOLID FUEL ........................D07/332
  STARCH ............................127/28
  STOVES ............................126


COOKIE CUTTER ....................... D07/672

COOLANT ............................. 102/704*
  NUCLEAR REACTORS ..................976/DIG.1+


COOLER & COOLING (SEE CONGELATION;
 QUENCHERS; REFRIGERATION) ..........62
  ABRASIVE TOOL OR SUPPORT ..........51/356
  AIR ...............................62/404+
     AUTOMATIC ......................62/186+
     PROCESS ........................62/89+
  AIR CONDITIONING EQUIPMENT ........D23/351+
  ARTICLE IN DISPENSER ..............221/150.R
  AUTOMATIC COOLING AND HEATING .....165/14
  BEARINGS ..........................384/313+
  BEDS ..............................5/284
     METAL ROLLING ..................72/251
  BODY ..............................604/113+
     TREATING MATERIAL ..............604/113+
       EXTERNAL .....................604/291+
  BRAKES ............................188/264.R
  CABINET COMBINED ..................312/236
  CASTINGS ..........................164/122+
     CONTINUOUS .....................164/443+
  CHEMICAL REACTION OR SOLIDS
     DISSOLVING .....................62/4
  CLEANING OR POLISHING
     TOOL OR SUPPORT ................15/230.1
  CLUTCHES ..........................192/113.R
  COATING TREATMENT .................427/398.1+
  COMPOSITIONS ......................252/70
     ANTIFREEZE TYPE ................252/71
     VAPORIZATION OR EXPANSION ......252/67+
  CONGEALED MATERIAL DRYING .........34/5
  CONTROL ...........................236
  COOLING AND HEATING APPARATUS .....165/58+
     CONVEYER ART ...................198/952*
     DESIGN .........................D23
     TOWERS .........................261/DIG.11
  DISCHARGE NOZZLE ..................239/132.3
     REACTION MOTOR .................239/127.1+
  DISPENSER .........................222/146.6
  DISTILLATE ........................203
     APPARATUS COMBINED .............202
  DRYING COMBINED WITH ..............34/13
     COLD GAS CONTACT ...............34/20
     COOLING MEANS ..................34/62+
     VAPOR CONDENSERS ...............34/73+
  EARTH BORING COMBINED .............175/17
  ELECTRIC LAMP .....................313/11+
  ELECTRIC LAMP OR ELECTRONIC TUBE   315/112
     IN SYSTEM ......................315/112+
  ELECTRICAL APPARATUS ..............174/15.1+
  ELECTRON TUBE .....................313/11+
  EMULSION BREAKING BY ..............252/346+
  EVAPORATION, COOLING BY
     IN HYDROCARBON SYNTHESIS .......585/940*
  FLUID HANDLING SYSTEMS OR DEVICES  417/243
     WITH ...........................417/243+
     DISCHARGE NOZZLES ..............239/132.3
  FOUNDRY MOLD ......................164/348
  FURNACE ...........................432/233+
     ARC, ELECTRICAL ................373/74
       SIDEWALL .....................373/76
     DESIGN .........................D23/329
     DOORS OR CASINGS ...............110/180
     DOORS OR FRONTS BY WATER .......122/497+
     ELECTRICAL INDUCTION ...........373/165
       CORELESS .....................373/151+
     INDUSTRIAL BY WATER ............122/6.R+
     METALLURGICAL SHAFT TYPE .......266/190+
     RESISTANCE, ELECTRICAL .........373/113+
  FUSION-BONDING APPARATUS COMBINED .228/46
  GAS AND LIQUID CONTACT ............261/127+
  GLASS MANUFACTURING
     FOR APPARATUS ..................65/355
     MELT COOLING ...................65/137
     PRODUCT COOLING ................65/348
  GRINDER ...........................51/266+
  HEATING COMBINED OR BY HEAT
     EXCHANGE .......................165
  HUMIDITY REGULATION ...............236
  LIGHT PROJECTORS ..................362/294
  LIQUID ............................62/389+
     AUTOMATIC ......................62/177+
     DISCRETE COMMODITY CONTACTING ..62/373+
     INDIRECT HEAT TRANSFER LIQUID ..62/430+
     PROCESS ........................62/98+
  LIQUID PURIFICATION ...............210/774+
     APPARATUS ......................210/175+
     PRECIPITATION ..................210/737
  LUBRICATORS .......................184/104.1
  MATERIAL DURING FILLING ...........53/127
  MILK TREATING APPARATUS ...........99/455
  MOLD STEREOTYPE ...................164/144
  MOLD TYPE .........................199/56
  MOTOR OR PUMP
     COMBUSTION PRODUCTS POWER       60/39.83
       PLANT ........................60/39.83
     COMPRESSOR INTERCOOLER .........417/243
     CONDENSERS .....................165/110
     ELECTRIC LOCOMOTIVE ............105/59
     INTERNAL COMBUSTION ............123/41.1+
     LAND VEHICLE SYSTEM ............180/68.4+
     MARINE PROPULSION ..............440/88
     POWER PLANT COMBUSTION EXHAUST .60/310
     POWER PLANT COMBUSTION EXHAUST .60/317
     POWER PLANT COMBUSTION EXHAUST .60/320+
     POWER PLANT COMBUSTION EXHAUST .60/685
     POWER PLANT FLUE EJECTED        60/685+
       EXHAUST ......................60/685+
     RADIATOR .......................165/121+
     SHAFT COUPLING .................464/17
     TURBINE ........................415/175+
  NEEDLE OF SEWING MACHINE ..........112/281
  NOZZLES ...........................239/132.3
     REACTION MOTOR DISCHARGE .......239/127.1+
  NUCLEAR REACTORS ..................976/DIG.187+

  PIPE JOINT ........................285/41
  PIPE SMOKING ......................131/195
  PLASTIC METAL WORKING .............72/253.1+
  POWER PLANT X-ART .................60/912*
  RADIO TYPE TUBES
     INTEGRAL COOLER ................313/11+
  ROLLING MILL ......................72/201
  SEWAGE TREATMENT PROCESS ..........210/612+
  TIRES .............................152/153
  WITH COMMINUTION ..................241/65
     BY FLUID OR LUBRICANT AND OTHER 241/17
       METHODS ......................241/17
     BY FLUID OR LUBRICANT METHOD ...241/15
     BY GAS OR VAPOR METHOD .........241/18+
     FLUID APPLYING MEANS ...........241/38+
     MATERIAL COOLING MEANS .........241/65+
     MATERIAL COOLING METHODS .......241/23
  WORK HOLDER ELECTRIC METAL HEATING 219/158+
  X RAY GENERATING APPARATUS WITH ...378/141
  X RAY TUBES .......................313/11+

COOLING TOWER ....................... 261
  ICE PREVENTION ....................261/DIG.86

COOP ................................ 119/19

COOPERING SEE BARRELS ............... 147

COORDINATE DETERMINATION ............ 367/907*

COP AND COP WINDING ................. 242/18.R+
  BOBBINS OR SPOOLS .................242/118.3+
  FILLING RECEPTACLES WITH ..........53/235+
  FINISHING APPARATUS ...............28/284+
  SORTER ............................209/927*
  WOUND PACKAGES ....................242/159


COPAL ............................... 530/203
  SAND TYPE .........................164/349+
     MAKING .........................164/6+

COPIER AND COPYING
  ELECTROPHOTOGRAPHIC ...............355/200+

COPING .............................. 52/300
  EARTH SUPPORTED ...................52/102
  TUBULAR ...........................52/244

COPPER
  ALLOYS ............................420/469
     ALUMINUM .......................420/489
  COMPOUND INORGANIC ................423
     BIOCIDES CONTAINING ............424/630+
     CUPRATES .......................423/592+
     HALIDES ........................423/462+
       HYDROCARBON PURIFICATION BY ..585/849
     OXIDE OR HYDROXIDE .............423/604
       PHOTOELECTRIC CELL BATTERY ...136/265
  COMPOUND ORGANIC ..................556/110+
     MEDICINE .......................514/184
  ELECTROLYTIC SYNTHESIS ............204/106+
  FROTH FLOTATION ...................209/901*
  HEAT TREATMENT ....................148/679+
  HYDROMETALLURGY ...................75/711+
  MISC  CHEMICAL MANUFACTURE ........156/DIG.76
  PLATE .............................428/674+
     ON IRON ........................428/676+
  PLATING ...........................205/291+
  PYROMETALLURGY ....................75/638+
     COMBINED WITH HYDROMETALLURGY ..75/416+

COPY
  ADVANCING MEANS ...................226/168+
  ELECTROPHOTOGRAPHIC COPY ..........355/200+
  HOLDERS (SEE COPYHOLDERS) .........248/441.1+
     ADVANCING MEANS ................226/12
  MULTIPLE ..........................462/18+
     PHOTOCOPYING EQUIPMENT .........D18/36+


COPYHOLDER .......................... 248/441.1+
  CARD HOLDER ON TYPEWRITER .........40/521+
  ELECTROPHOTOGRAPHIC COPIER ........355/72+
  ELECTROPHOTOGRAPHIC COPIER ........355/230+
  GUIDE STATIC FOR MOVING COPY ......226/196+
  LINE GUIDE TYPE ...................40/352+
  MOVABLE COPY ......................40/342+
  SHEET OR WEB HOLDER ON TYPEWRITER .40/578+
  TYPEWRITER ATTACHABLE .............248/442.2

COPYING SEE PATTERN CONTROL
  CAMERA ............................355/18+
  COATED SURFACE ....................427/144
  COMPOSITIONS ......................106/14.5
  MACHINES SEE PATTERN CONTROL
  PADS AND FORMS ....................118/264+
  PAPER OR CARBON PAPER .............462/69+
     COATED .........................427/153+
  PHOTOCOPYING MACHINES .............355
  PLANOGRAPHIC
     APPARATUS ......................101/131+
     ELEMENTS .......................101/473
     PROCESSES ......................101/468+
  PRESSES
     DESIGN .........................D18/50
  WOOD TURNING ......................142/7+


CORD (SEE STRAND)
  ELECTRIC (SEE CONDUCTOR)
  FABRIC
     BED BOTTOM .....................5/190+
     BRAIDED NETTED OR LACE .........87
     HAMMOCK ........................5/122
     KNITTED ........................66/169.R+
     WOVEN ..........................139/383.R+
  FASTENER OR TIE ...................24/115.R+
     BALE OR PACKAGE ................24/18
     BOX CLOSURE ....................229/125.22
     FLEXIBLE BAG ...................383/71
     GARMENT SUPPORTER ..............2/341+
     HAT ............................132/61
     KNOTTER COMBINED ...............289
     NECKTIE ........................24/58
       DESIGN .......................D02/607
     SASH ...........................16/202+
     SEPARABLE ......................24/660
     WINDOW SASH COMBINED ...........49/445+
  FINISHING APPARATUS ...............28/219+
  GUIDE .............................254/389
     KNOTTER COMBINED ...............289/15
     REELING ........................242/157.R
     SASH ...........................16/210+
  HAT ...............................2/175.7
  OPENER, TEAR MEMBER
     BAG ............................383/206
     BOX ............................229/239
     ENVELOPE .......................229/311+
  OPERATING (SEE DEVICE OPERATED)
  PACKAGING .........................28/289+
  PLIANT, DEFORMABLE SHEET402/8
     RETAINER .......................402/8+
  SHORTENER (SEE TAKE UP)
  SPUN TWISTED OR TWINED ............57
  SPUN TWISTED OR TWINED DESIGN .....D05/7+
  STRAIGHTENER
     ELECTRIC CONDUCTOR TYPE ........174/69
       INSULATOR COMBINED ...........174/154
     SPRING DEVICE ..................267/74
     TELEPHONE CORD TYPE ............379/441
  SUPPORTING
     LIGHT TYPE .....................362/407
     PACKAGE AND ARTICLE CARRIER ....294/149+
     PICTURE FRAME COMBINED .........40/153
     PICTURE TYPE ...................248/489+
     SASH BALANCE ...................16/193+
     SHEET RETAINER ALSO SERVES TO   402/7
       INSERT BINDER STRAND THRU     402/7
       SHEET ........................402/7
     TOOL CORD TYPE .................248/51+
  TERMINAL ..........................439/775+
  TIRE
     ANTISKID DEVICES ...............152/221+
     CARCASS MATERIAL ...............152/548
     CARCASS MATERIAL ARRANGEMENT ...152/558
     MAKING .........................156/117
  TYING OR KNOTTING .................289
     HARVESTER COMPRESSING AND       56/433
       BINDING ......................56/433+
     HARVESTER RAKING AND BUNDLING ..56/343
  WINDING AND REELING ...............242/47+

CORDEAU DETONANT .................... 102/275.1+
  COMPOSITION .......................149/105+

CORDUROY ............................ 139/392


CORE (SEE CASTING, PLASTICS; MANDREL)
  ASSEMBLING APPARATUS ..............29/234
  BOX ...............................164/228+
     PLANES .........................30/479
     SECTIONS HINGED ................164/233
  BRUSH AND BROOM ...................15/204+
  CASTING
     BOXES ..........................164/228+
     CEMENT PIPE MOLD ...............425/59+
     CEMENT PIPE MOLD ...............425/406+
     CHAPLETS .......................164/398+
     MATERIALS ......................106/38.2+
     MEANS TO EXPAND OR CONTRACT ....249/178+
     METAL FOUNDING SAND ............164/369+
     MOLDS METAL SEPARABLE ..........249/142+
     MOLDS SAND COMBINED ............164/365+
     OF PLURAL SECTIONS .............249/184+
     OF RESILIENT MATERIAL ..........249/183
     PLASTIC MOLDS ..................425/468
     REMOVING .......................164/132
     REMOVING APPARATUS .............164/345+
     STATIC MOLD ....................249/175+
  CUTTERS AUGER TYPE ................408/199+
  CUTTING
     ANNULAR DRILLS .................408/204+
     BUTTON MAKING ..................79/16
     EARTH ..........................175/403+
     TUBULAR WOOD SAW ...............408/204+
     WOOD DISK ......................408/204+
  DAM ...............................405/109
  DEFORMING METAL
     DESTRUCTIBLE CORE ..............72/57+
     FLEXIBLE CORE ..................72/466
  DISTILLATION RETORT ...............202/225
  ELECTROMAGNET .....................335/297
     CIRCUIT BREAKER ARMATURE .......335/281+
     CIRCUIT BREAKER MULTIPLE .......335/180+
  FLEXIBLE FOR TUBE BENDING .........72/466
  MAGNETIC
     ELECTROMAGNET WITH ARMATURE ....335/220+
     REACTOR ........................336/233+
     TRANSFORMER ....................336/233+
  MATERIALS .........................106/38.2+
  MOLDING MACHINES FOR FOUNDRIES ....164/228+
  NUCLEAR REACTOR ...................376/347
  NUCLEAR REACTOR ...................376/409
  PILE DRIVING TYPE .................405/245+
  PILLOW ............................5/636
  PLATES FOR STORAGE BATTERIES ......429/209+
  RAILWAY PEDESTAL BLOCK ............238/117
  REELING FABRICS ...................242/68+
  SCREW THREADING TAPS
     CAM ............................408/158
     WEDGE ..........................408/179
  STATIC MOLD HAVING
     REMOVABLE ......................249/142
  STRAND STRUCTURE COVERED ..........57/210+
  SUPPORTS ..........................164/397+
  TEXTILE COVERING PROCESSES ........57/3+
  TEXTILES COVERING .................57/3+
  TIRES CASING ENCLOSED .............152/310+

CORER
  HAND MANIPULATED ..................30/113.1+
     PLURAL COOPERATING BLADES ......30/174
  MACHINE ...........................99/547
     DOFFER PARER COMBINED ..........99/541+
     DOFFER PARER SEGMENTER COMBINED 99/543
     PARER COMBINED .................99/541
     PARER SLICER COMBINED ..........99/543
     PARER SLICER COMBINED ..........99/592
     SEGMENTER COMBINED .............99/545
     SLICER COMBINED ................99/552

CORK
  BOARD MAKING ......................264/124
  BOTTLE STOPPERS ...................215/355+
  COATING OR PLASTIC COMPOSITIONS
     CONTAINING .....................106/204.1
  FASTENER MAKING ...................140/85
  HOOF COVERING .....................168/26+
  PAVING ............................404/17+
  POLYMERS CTG (SEE SYNTHETIC RESIN OR NATURAL RUBBER)
  PRESS .............................144/284
  PULLERS ...........................81/3.7+
  REMOVING IMPLEMENT ................D08/42
  WIRE APPLYING TO ..................140/94+

CORKSCREW ........................... 81/3.45
  HAYFORK MANIPULATOR ...............294/121
  MAKING ............................140/86


CORN
  COB SPLITTER ......................225/93+
  EAR HOLDER ........................294/5
  FILES .............................132/76.4
  FOODS .............................426/627+
     FLAKES .........................426/621
  GRINDING ..........................241
  HARVESTING ........................56/51+
  HOLDER FOR EATING .................D07/683
  HUSKING
     MACHINES .......................460/25
  MEANS TO BUTTER EAR CORN ..........401/12
  MEDICINES FOR .....................424
  PADS FOR ..........................128/882
  PLANTER ...........................111
     CLUTCHES .......................192/23
  POPPING APPARATUS .................99/323.5+
  SHELLERS ..........................460/45+
     GREEN CORN .....................99/567
  STRINGERS WEAVING .................139/19
  STRIPPER ..........................30/121.5

CORNCOB
  PIPE ..............................131/230
  SPLITTER ..........................225/93+

CORNEAL CUTTING DEVICE .............. 606/166


CORNER
  BUILDING COMPONENT ................52/272+
     CONCRETE OR PLASTER ............52/250+
     EMBEDDED PROTECTOR .............52/254+
     PANEL EDGE BINDER ..............52/264+
     TRIM OR SHIELD .................52/288
     WINDOW FRAME POST ..............52/204.57
  CABINETS ..........................312/238
  CONNECTOR
     FOLDED WALL EXTENSION ..........229/190+
     FOLDED WEB .....................229/186+
  STRUCTURE
     BEDSTEAD FASTENINGS ............5/288+
     BLOCK ..........................52/284+
     BOLTED TABLE LEG ...............108/156
     BRACKET TYPE SUPPORT ...........248/220.1
     BUILDING COMPONENT .............52/272
     COFFINS ........................27/10
     CURBS AND GUTTERS ..............404/8
     ELASTIC FLAT BEDBOTTOM .........5/205+
     LAND VEHICLE BODY ..............296/29+
     PANEL TYPE SWITCHBOARD .........361/651
     RAZORS .........................30/76
     RESILIENT TIRES SECTIONAL ......152/183
     TRUNK SHIELDS AND BUFFERS ......190/37

CORNET .............................. 84/388+
  DESIGN ............................D17/11
  DRAINAGE ..........................84/397
  MOUTHPIECES .......................84/398+
  MUTES .............................84/400
  TREMOLOS ..........................84/401

CORNICE
  CURTAIN SHADE OR SCREEN COMBINED ..160/19+
  DESIGN, FABRIC ....................D06/575
  DESIGN, RIGID .....................D25/55
  DESIGN, STRUCTURAL ................D25/55
  METAL SHEATHING ...................52/287
     TRIM OR SHIELD .................52/288


CORONA
  DISCHARGE PHOTOGRAPHY .............354/3
  DISCHARGE PROCESS .................430/937*
     CHEMICAL APPARATUS .............422/907*
  ELECTROPHOTOGRAPHIC COPIER ........355/221
  ELECTROPHOTOGRAPHIC COPIER ........355/274+
  PREVENTION
     CONDUCTORS .....................174/127
     DYNAMOS ........................310/196

CORPSE
  CARRIERS ..........................27/28
  COOLERS
     DISPLAY TYPE ...................62/246+
     OPEN SUPPORT ...................62/458
  CREMATING FURNACE .................110/194
  UNDERTAKING .......................27

CORROSION PREVENTING
  AGENTS ............................252/387+
  COATING COMPOSITION ...............106/14.5+
  DISTILLING COMBINED ...............203/6+
  IN HYDROCARBON SYNTHESIS ..........585/950*
  IN NUCLEAR REACTORS ...............376/305
  MINERAL OIL CONVERSION COMBINED ...208/47
  PROCESSES .........................422/7
  REFRIGERATION WITH ................62/85

CORRUGATED STRUCTURE
  BUILDING PANEL ....................52/630
     METAL ..........................428/603+
  PIPES
     FLEXIBLE .......................138/121+
     REINFORCED .....................138/173
  RAILWAY TIES ......................238/82
  RECEPTACLE WOODEN STRAPS FOR ......217/67
  REFLECTOR LANTERN COMBINED ........362/297+
  SHEET METAL .......................428/603+
  SHIP ..............................114/80
  STOCK MATERIAL ....................428/179
     MAKING APPARATUS ...............156/205+
     MAKING PROCESS .................264/286+
  WRAPPERS FOR BOTTLES ..............229/90


CORRUGATING SEE CRIMPING
  LAND FURROWING IMPLEMENT ..........172
  METAL .............................72/190+
     CURVING AND ....................72/177
     SLITTING AND ...................29/6.1
     TUBE ...........................72/102+
     WEB OR SHEET ...................72/196
  PAPER
     CREPE PAPER MAKING .............162/111+
     PROCESSES FOR ..................264/286+
  PLASTIC & EARTHENWARE SHAPING .....425/396
  RUFFLER FOR SEWING MACHINE ........112/132+

CORSAGE ............................. D11/117+

CORSET .............................. 450/94
  COVERS ............................2/110
  DESIGN ............................D02/701+
  MAKING ............................223/53
     REINFORCING ....................223/4

CORTICOSTERONE ...................... 552/588

CORTISONE ........................... 552/577

CORTISONE, IN DRUG .................. 514/179

CORUNDUM ............................ 423
  ABRASIVE COMPOSITION ..............51/309
  REFRACTORY COMPOSITION ............501/127+
     MAGNESIUM COMPOUND CONTAINING ..501/119

CORYNANTHINE ........................ 546/53


COSMETIC PRODUCT .................... D28/4+
  APPLICATOR, BRISTLED BRUSH ........D04
  APPLICATOR,GENERAL ................D28/7+
  BOX ...............................206/542
  BRUSH .............................D04
  COLD CREAM ........................514/772+
  COMPACTS ..........................401/126+
     DESIGN .........................D28/78
  FACIAL ............................514/844
  INCLUDING TOILET ARTICLE, .........132/286+
     EG MIRROR ......................132/316
       COMPACT ......................132/301+
     WITH LIGHT .....................362/135+
  LIPSTICKS .........................424/64
     CONTAINER ......................206/385
     LIPSTICK IN CONTAINER ..........D28/76+
  PACKAGE FOR .......................206/803*
  POWDER APPLICATOR .................D28/8
  POWDER IN CONTAINER ...............D28/76+
  SHAPED APPLIERS ...................132/320
     DESIGN .........................D28/76+

COSMIC RAY DETECTION ................ 250/336.1
  CLOUD CHAMBER .....................250
  DETECTOR TUBES ....................376/153+
  DETECTOR TUBES ....................313/93
  PHOTOGRAPHIC FILM .................250/475.2
  SCINTILLATION .....................250/361.R+

COSMID .............................. 435/320.1

COSTUME ............................. D02/741
  GARMENT PRIOR TO 1900 .............D02/729

COTS ................................ 5/110+
  CANOPIES ..........................5/414+


COTTER
  NUT LOCKS
     DESIGN .........................D08/382
     IN BOLT TO NUT LOCK ............411/213
     IN BOLT TO NUT LOCK ............411/320
     MAKING .........................29/5
  PIN ...............................411/513
  PULLERS ...........................29/247+
  RAILWAY CAR WHEEL .................295/50
  SHAFT JOINT TYPE ..................403/378+
  SLOT PUNCHING .....................470/161

COTTON
  CHOPPER TYPE PLOWS ................172
  FIBER PREPARATION .................19
  HARVESTING ........................56/28+
  RIPENING ..........................47/5

COTTON CANDY MAKER .................. 425/9

COUCH
  BOX TYPE ..........................297/192+
  FURNITURE DESIGN ..................D06/334
  HAMMOCK ...........................5/124+
  KINESTHERAPY ......................128/33
  LIGHT THERMAL AND ELECTRICAL       607/115+
     APPLYING .......................607/115+
  ORTHOPEDIC ........................606/242+
  ROLL ..............................162/314
  TUB COMBINED ......................4/547

COULOMBMETER
  BALLISTIC GALVANOMETER ............324/97
  ELECTROLYTIC ......................324/94

COULTER ............................. 172/165
  PLANTING MACHINE ..................111/140


COUMARINS ........................... 549/283

COUMARONE ........................... 549/434
  RESINS (SEE ALSO SYNTHETIC RESIN OR526/266
     NATURAL RUBBER) ................526/266


COUNTER & COUNTING (SEE RECORDERS;    D10/97+
 REGISTERS; SHELF & SHELVING; TALLY; D10/97
 SHOWCASE) ..........................D10/97
  ALARM FOR OPERATION ...............116/73
  APPLICATIONS ......................377/1
  BANK PROTECTION TRAPPING109/4
     MECHANISM ......................109/4
  BLOOD .............................377/10
  CABINET TYPE ......................312/140.1+
     CHECK-OUT COUNTER ..............186/59+
  COIN ..............................453/58+
     BOX ............................235/100
  DECADE
     ELECTRONIC TUBE TYPE ...........377/103
     GAS TUBE .......................315
  ELECTROMECHANICAL .................377/82
  ELECTROMOTIVE FORCE
     GENERATOR EXCITATION CONTROL ...322/86+
  ELECTRONIC ........................377
  FAUCET OPERATION ..................235/94.R
  GEIGER MULLER .....................250/374+
  INDICATING MEANS ..................377/112
     TUBE PER SE ....................313/93
  MECHANICAL ........................235
  MECHANISM FOR PACKAGE .............235/98.R
  MECHANISM FOR TURNSTILES ..........235/93
  NUCLEAR FOR FLUID .................250/336.1
  RAILWAY BLOCK SIGNAL IN-AND-OUT ...246/77+
  RAILWAY CAR ACTUATED CIRCUIT
     CONTROL BY .....................246/247
  RECORDER COMBINED .................346/14.R+
  REGISTERS .........................235
  ROTATION ..........................235/103+
  SCINTILLATION .....................250/361.R+
  SHEETS ............................235/89.R
  SHOE ..............................36/69
  SHOWCASE ..........................312/114+
     CABINET TYPE ...................312/140.1+
     PROTECTORS AND GUARDS ..........312/137
  STIFFENER
     BOOT AND SHOE ..................36/68
     SHOE HEEL AND ..................36/69
  SYSTEMS ...........................377/27
  TYPEWRITER WORDS ..................235/102


COUNTERBALANCE (SEE COUNTERPOISE; COUNTERWEIGHT)
  ADJUSTABLE BRACKET WITH ...........248/274+
  CABLE HAULING DRUM WITH ...........254/312
  CENTRIFUGAL METAL
     CASTING DEVICE WITH ............164/287
  CLOSET SEAT .......................4/241
  CRANE .............................212/195+
  CRANKS AND WRISTPINS ..............74/603+
  CULTIVATOR BEAM SEAT ..............172/431+
  ELECTRIC LAMP ETC ELECTRODE .......314/98
  ELEVATOR ..........................187/94
  PEDALS ............................74/594.5
  PITMAN AND CONNECTING ROD .........74/589+
  RAILWAY CABLE CAR .................104/174+
  RAILWAY WHEELS WITH ...............295/6
  ROBOT .............................901/48*
  SPRING BIASED TOOL ................172/705+
  STAND AND ADJUSTABLE BRACKET ......248/123.1
  STANDARD TYPE SUPPORT
     ADJUSTABLE WITH ................248/162.1
  SUSPENDED SUPPORT ADJUSTABLE WITH .248/323+
  UPENDING BED ......................5/164.1+
  VALVES ............................251/281+
  WEIGHTED TOOL .....................172/611
  WEIGHTS PER SE ....................16/1.C
  WEIGHTS SUPPORT TYPE ..............248/364

COUNTERBORE BORING HEAD ............ 408/223+

COUNTERPANE ......................... 5/482

COUNTERPOISE (SEE COUNTERBALANCE)
  DISAPPEARING GUN MOUNT ............89/39
  OVAL PATTERN LATHE CHUCKS WITH ....142/51
  RADIO ANTENNA .....................343/846+

COUNTERSINK
  AUGERS ............................408/223+
  DRILL COMBINED ....................408/223+
  PIPE AND PLATE PACKED JOINT .......285/211+
  REAMERS ...........................408/223+
  SCREW PIPE JOINT EXTERNAL
     PACKING AND ....................285/349+
  SCREWS ............................411/378

COUNTERTOP TILE ..................... D23/308

COUNTERWEIGHT SEE COUNTERBALANCE
  CARCASS SPLITTING SAW .............452/160+
  CHUTE .............................193/24
  CHUTE VERTICAL SWING ..............193/18+
  DRILLING MACHINE ..................408/235
  ELEVATOR FLUID GOVERNORS ..........187/70
  GRINDER MOUNT .....................51/166.R
  LIGHT SUPPORTS WITH ...............362/401+
  MATERIAL HANDLING HOIST ...........414/601
  MATERIAL HANDLING HOIST WITH ......414/673
  RAILWAY CAR STOP BUMPERS WITH .....104/255
  RAILWAY SWITCH AND SIGNAL
     MECHANICAL LOCKING WITH ........246/153+
  RAILWAY SWITCH STANDS
     AUTOMATIC WITH .................246/288
  SASH ..............................16/216+
  SASH BALANCES CORD AND ............16/194
  SUSPENDED SUPPORT WITH ............248/331
  VERTICALLY SWINGING SHOVEL WITH ...414/719+

COUPLE
  DELIVERY TWIST TEXTILE SPINNING ...57/60+
     STRAND CONTROLLED STARTING AND
       STOPPING .....................57/82
  PRINTING ..........................101/183+

COUPLER FOR ORGAN SEE ORGAN

COUPLING (SEE CONNECTION)
  AGRICULTURAL IMPLEMENT TO TRACTOR .280/504+
  BOLT OR NUT SUBSTRUCTURE ..........411/81+
  BOLT TO NUT .......................411/190+
  BOXES TO ELECTRIC FIXTURES ........174/61+
  CIRCUIT ...........................333/24.R+
  CORD AND CABLE
     END HOLDERS ....................24/115.R+
     SHIP TENSION RELIEVER ..........114/216+
  DETACHABLE FROM CONTAINER .........206/831*
  DRAFT
     ARTICULATED LAND VEHICLE .......280/504+
     CABLE ..........................104/193
     HORSE DRAWN STREETCAR ..........278/2.1
     PLOW TYPE ......................172/677+
     RAILWAY ........................213/75.R+
     RAILWAY TOOLS ..................294/18
     THILL ..........................278/52+
  ELECTRIC
     AMPLIFIER (SEE AMPLIFIER)
     BRAKE ..........................310/93
     CIRCUIT ........................333/24.R+
     CLUTCH TYPE ....................310/92+
     NETWORK TYPE ...................333/24.R+
     WAVE GUIDE .....................333/202+
     WITH ANTENNA ...................343/850+
  FLUID .............................60/325+
     CLUTCH COMBINED ................192/3.21+
     GEARING COMBINED ...............74/730.1+
     IMPELLER MAKING ................29/889.5
     PLANETARY GEARING COMBINED .....475/31+
  RAFTING AND BOOMING TIMBER TYPE ...441/50+
  RAILWAY TOOLS .....................294/18
  RAILWAY WHEEL AND AXLE ............295/39+
  ROD PIPE AND SHAFT
     CLOSET BOWL ....................4/252.1+
     DREDGER PIPE STRUCTURE .........37/335+
     DREDGER PIPE SUPPORTS ..........37/334
     ELECTRICAL PIPE TYPE ...........439/191+
     FLEXIBLE SHAFT .................464
     NOZZLE TYPE DISPENSER ..........222/567+
     PACKING ........................277
     PIPE TYPE ......................285
     RAILWAY DRAFT PIPE SUPPORT .....368/15+
     ROD TYPE .......................403
     SCAFFOLDING POLE ...............403
     SPRINKLER PIPE .................239/266+
     STRAINER AND PIPE ..............4/288
     VALVED PIPE ....................60/530+