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:


SCRIBER SEE SCORING ................. 33/18.1+
  BARREL HEAD MAKING ................147/37
     HAND DEVICE ....................147/41

SCROLL
  ACTUATED CHUCK ....................279/114+
  DISPLAY CONTROL ...................345/123+
  SAW ...............................83/783+
     HAND ...........................30/513+
     HANDLE .........................30/525
  TYPE COMMINUTOR ...................241/276

SCRUBBING AND SCRUBBER
  BATHING APPARATUS COMBINED ........4/606
  BRUSHES ...........................15/159.1+
     HOLDERS ........................15/146
     MATERIAL SUPPLY COMBINED .......401/268+
  DESIGN, EQUIPMENT .................D32/35+
  FLOOR AND WALL MACHINES ...........15/50.1+
  GAS (SEE GAS, LIQUID CONTACT WITH) 261
  IMPLEMENT, GENERAL CLEANING .......15/104.1+
  IMPLEMENTS FOR TEXTILE WASHING ....68/220
  KNEELING STOOLS ...................182/230
     WITH TOOL HOLDER ...............182/129
  MACHINES FOR CLEANING .............15/3
  MOPS ..............................15/208+
     STRAND MATERIAL ................15/226
  PAILS .............................15/264
  TEXTILE WASHING MACHINES ..........68
  WASHING OR CLEANING METHODS .......134/6+
  WASHTUB SURFACE ...................68/233

SCULPTING
  ARITICLES FOR .....................D19/35
  CHISEL ............................D08/47
  HAMMER ............................D08/75+
  KNIFE OR SPATULA ..................D08/98+

SCULPTURE (SEE PRODUCT)
  DESIGN ............................D11/131+
  FAUNA .............................428/16
  LAYER VARYING THICKNESS ...........428/156+
  MANIPULABLE .......................446/268+
  MILLING MACHINE ...................409/79+
     PHOTOGRAPHIC PROCESS ...........430/323+
  TEACHING ..........................434/82+


SCUPPER ............................. 114/182

SCUTCHING ........................... 19/5.R+
  BEATERS ...........................19/85+

SCUTTLE
  OPERATORS .........................49/324+

SCYTHE .............................. 30/309
  DESIGN ............................D08/12
  HANDLE FASTENING ..................403
  NIB JOINTS ........................403

SEA CALMING ......................... 114/232+

SEAFOOD ............................. 426/643+
  PRESERVATION ......................426/321+
     ANTISEPTIC AND PICKLING ........426/654
     CANNING ........................426/392+
     DEHYDRATION ....................426/471+
     REFRIGERATION ..................426/524
  WEED COMPOSITIONS .................536/3


SEAL, SEALER, & SEALING
  APPARATUS FOR MAKING PLASTIC SEALS 425
     MOLDING WITH REINFORCEMENTS ....425/500+
  BAND OR WIRE APPLIER ..............140/150+
  BATTERY ...........................429/172+
  BEARING
     BALL COMBINED ..................384/477+
     BALL COMBINED WITH LUBRICATION .384/462+
     PLAIN ..........................384/130+
  BOOKS HAVING ......................281/18
  BOTTLE CAP ........................425/809*
  CAULKING SHIPS ....................114/86
  CAULKING TOOLS ....................81/8.1
     METALWORKING ...................72/463
  CIGAR OR CIGARETTE WRAPPER ........131/67+
  CLOSURE ...........................49/475.1+
     ACTUATED .......................49/303+
     OPERATOR .......................49/316+
  CONDUIT CABLE OR CONDUCTOR ENDS ...174/77.R
  CYLINDRICAL CELL ..................429/171+
  ELECTRON TUBE SEALING .............53/DIG.3
  ENVELOPE SEALING & STAMPING .......156/442
  FUEL CELL .........................429/35+
  GLASS
     COMPOSITIONS ...................501/15
     ELECTRONIC TUBE HAVING .........174/50.5+
     GAS OR VAPOR LAMP HAVING .......313/623+
     INCANDESCENT LAMP HAVING .......174/50.5+
     INCANDESCENT LAMP HAVING .......220/2.1R+
     INCANDESCENT LAMP HAVING .......174/17.5+
     LAMP OR DISCHARGE DEVICE MAKING
       APPARATUS ....................65/152+
       PROCESSES ....................65/36+
  HERMETIC (SEE AIR LOCK)
     DRYING OR GAS CONTACT
       CHAMBER HAVING ...............34/242
       PROCESSES USING ..............34/15
     INFLATABLE TOYS HAVING .........446/222
     PRESERVING FOOD BY .............426/392+
     STILL ..........................202/269
     VALVE ACTUATOR .................251/335.1+
  HIGH FREQUENCY ELECTRIC SEALING ...53/DIG.2
  INFLATABLE ........................49/477.1
  LIGHT
     PLATE HOLDERS HAVING ...........354/277
  LIQUID (SEE TRAP)
     BARREL BUNG ....................217/105
     BOTTLE AND JAR CLOSURE .........215/234
     DISPENSER TYPE .................222
     FLOW METER HAVING ..............73/234+
     GAS MAKING CUPOLA HAVING .......48/69
     GAS SEPARATOR COMBINED .........55/355
     HARDENABLE LIQUID JAR CLOSURE ..215/233
     LIQUID SEAL ONLY ...............429/78
     MACHINE, IE BOLT ...............285/10+
     METALLIC RECEPTACLE CLOSURE ....220/216+
     PACKED ROD JOINT ...............277/135
     PLASTIC SEAL JAR CLOSURE .......215/233
     ROTARY EXPANSIBLE
       CHAMBER DEVICE ...............418/104+
     SEWERAGE HAVING ................137/247.11+
     VALVE ..........................137/251.1+
     VALVE INTERFACE ................137/246+
  LIQUID BARRIER ....................277/135
     CENTRIFUGAL ....................277/13+
  LOCK, CLOSURE FASTENER ............292/307.R+
     BARREL BUNG ....................217/114
     BOTTLE CAP WITH SEPARATE
       FASTENER .....................215/273+
     BOTTLE OR JAR CLOSURE ..........215/200+
     CLOSURE FASTENER BOLT ..........292/327
     CLOSURE FASTENERS WITH .........292
     ELECTRIC CONNECTOR .............439/271+
     ENVELOPE .......................229/80+
     ENVELOPE FASTENER ..............229/79
     FOUNTAIN PEN CAP COMBINED ......401/245
     LOCK COMBINED ..................70/440
     METALLIC CLOSURE ...............220/200+
     PADLOCK COMBINED ...............70/50
     SAFE DOOR JAMB .................109/64+
     ZIPPER .........................24/418+
  MAGNETIC ..........................49/478.1
  MAKING SHEET METAL CONTAINER SEAMS 413
     OR SOLDER SEALS ................413
  MOISTENER COMBINED ................156/441.5+
  MOVABLE SHAFTS
     PACKING MATERIAL ...............277
     STUFFING BOXES .................277
  NOTARY ............................101/3.1+
  NUCLEAR FUEL COMPONENTS ...........376/451
  SEALING WAX APPLIER ...............401/1+
  SEPARATOR, IMPERFORATE BOWL        494/38+
     CENTRIFUGAL ....................494/38+
  STAMP OR ..........................D19/12
  TAMPER INDICATING
     FLUID HANDLING .................137/384
     PIPE JOINT .....................285/80
  TERMINAL ..........................429/181+
  WAX
     APPLIERS .......................401/1+
     COMPOSITIONS ...................106/218+
  ZIPPER SURFACE SEALED .............24/389

SEALED BEAM LIGHTS .................. 313/113+


SEAM
  ADHERENT MAKING
     APPARATUS ......................156
     PROCESS, BUTT ENDING ...........156/304.1
  BAG BOTTOM SEAMLESS ...............383/122
  BINDING DEVICES FOR SEWING MACHINE 112/137+
  CALKING ON SHIPS ..................114/86
  CLOTH RUBBER AND LEATHER ..........2/275+
     PRESSING .......................69/7
     SEWED SEAMS ....................112/262.1+
     SEWING .........................112
     SHOE UPPER .....................36/57
  HOSIERY ...........................66/179
     SIMULATED ......................66/181
  METAL
     CAN SIDE MAKING ................413/69+
     CONTAINER SPOUT ................222/574
     FUSION-BONDING APPARATUS .......228
     OPENING DEVICE .................220/260+
     RECEPTACLE .....................220/677+
     RECEPTACLE END STRUCTURE .......220/600+
     SHEET EDGE INTERFOLDING ........29/243.5+
     SHEET METHODS ..................413/1+
     TUBE OF SHEET MATERIAL .........72/48+
     WIRE FABRIC HAVING .............245/10
  PAPERBOX BOX ......................229/198.2+
  PIPE HAVING LONGITUDINAL ..........138/156+
     DISTINCT LAYERS ................138/151+
     FLEXIBLE .......................138/128
  PIPE HAVING SPIRAL ................138/154
     DISTINCT LAYERS ................138/150
     FLEXIBLE .......................138/129+
  RECEPTACLE PAPER CRIMPED END ......229/5.6

SEARCHLIGHT ......................... 362/35
  BOAT TYPE .........................362/61+
  BULBS .............................313

SEARING
  LEATHER ...........................69/7.5

SEASONINGS .......................... 426/650+


SEAT ................................ 297
  ACTUATED
     ABRADING WORK HOLDER ...........51/226
     BRAKE ..........................188/109
     DRY CLOSET .....................4/473
     FLUSH VALVE ....................4/250
     SEAT OR LID OPENER OR CLOSER ...4/245.1+
     SEAT SUBCLOSURE ................4/238
     TRACKMANS CAR ..................105/94
     WATER CLOSET ...................4/408+
  AGRICULTURAL IMPLEMENT ............172/431+
  AIRCRAFT ..........................244/122.R
     SAFETY LOWERING DEVICES ........244/141
  BACKLESS ..........................D06/349+
  BACKPACK CONVERTIBLE TO ...........224/155
  BATH AND CLOSET ...................4/237+
     BATHTUB ........................5/652+
     CHEMICAL HOLDER IN SEAT ........4/229
     COVER ..........................4/245.1+
     COVERS COMBINED ................4/234+
     DISINFECTING ...................4/233
     DRY CLOSET SUBCLOSURE ..........4/485+
     SEAT OR LID OPENER OR CLOSER ...4/245.1+
     VENTILATED .....................4/217
  BED ...............................5/653+
  BELT PASSENGER RESTRAINTS .........280/801.R+
     SAFETY BUCKLE ..................D11/200+
  BOAT ..............................114/363
  CABINET WITH ......................312/235.2+
  CONVERTIBLE TO RAILWAY BERTH ......105/322
  DESIGN ............................D06/334+
  GRINDERS, MILLING .................409/64+
  GUARDS AND CONTROL FOR AMUSEMENT
     RAILWAYS ETC ...................104/241
  HARVESTER COMBINED ................56/323
  HEATED ............................4/DIG.6
  LAND VEHICLE ......................296/63+
     REAR SEAT WINDSHIELDS ..........296/85
  LIGHT COMBINED ....................362/131
     VEHICLE ........................362/75
  LIGHT THERMAL AND ELECTRICAL
     APPLICATION ....................607/115+
  LOCKS .............................70/261
  MECHANICAL PARTS
     BOTTLE OR JAR CLOSURE CAP ......215/316+
     PIVOTED SEAT MOTOR .............185/15.5
     RAIL SEATS .....................238/264+
     RAILWAY RAIL JOINT BASE PLATE ..238/215
     TOOL HANDLE FASTENING
       ADJUSTABLE ...................403/83+
     TOOL HANDLE FASTENING RIGID ....403
     VALVE (SEE VALVE AND VALVED DEVICES)
  OCCUPANCY INDICATOR ...............116/200+
     ELECTRIC .......................340/667
  OCCUPANT CARRIED ..................297/4
  OCCUPANT GUARDS OR RESTRAINTS .....297/464+
  PASSENGER RECORDING BY DEPRESSION .346/40
  RAILWAY PASSENGER CAR
     CONVERTIBLE OPEN AND CLOSED ....105/336
     PLACEMENT ......................105/345+
     SEAT BACK SIDE GUARD CONTROL ...105/441
  RUBBER ............................4/DIG.8
  SADDLE TREE AND SEAT CONNECTION ...54/42.1
  SOFA BED ..........................5/12.1+
  TOILET ............................4/237+
  TRACKMANS CAR .....................105/94
  VACANT SEAT SIGNALLING SYSTEM .....340/667+
  VEHICLE
     AUXILIARY ......................297/232+
     VELOCIPEDE .....................297/195.1+
     WITH BODY MODIFICATION .........296/63+
  WALK OVER .........................297/94+

SEAT BELT RESTRAINTS ................ 297/464+
  SAFETY BUCKLE .....................D11/200+

SEAWEED, ARTIFICIAL ................. 405/24

SEBACIC ACID ........................ 562/590

SECOND DETECTOR RADIO ............... 329

SECONDARY
  BATTERY ...........................429/149+
     CHARGING & DISCHARGING SYSTEMS .320/2+
  EMITTERS ..........................313/103.R+
     AMPLIFYING SYSTEM ..............330/42
     CATHODE RAY TUBE ...............313/399
     CATHODE RAY TUBE ...............313/387
     CATHODE RAY TUBE SYSTEM ........315/11
     CATHODE RAY TUBE SYSTEM ........315/12.1
     PREVENTION .....................313/106+


9, 10-SECO-
 CYCLOPENTANOHYDROPHENANTHRENES .....552/653

SECRET
  COMMUNICATION
     ELECTRONIC, FUNDS TRANSFER .....380/24
     FACSIMILE ......................380/18
     RADIO ..........................380/31+
     RADIO, PULSE OR DIGITAL ........380/37
     TELEGRAPH ......................380/9+
     TELEPHONE ......................380/41
     TELEVISION .....................380/10+
       ACCESS CONTROL ...............358/349
  COMPARTMENT TYPE CABINET ..........312/204
  CRYPTOGRAPHY PHOTO COPYING ........355/40+
     INCLUDING FIBER OPTICS .........355/1

SECTIONAL
  BOILERS ...........................122/209.1
  RADIATORS .........................165/130

SECTIONAL UNIT CABINET(SEE KNOCKDOWN) 312/107+
  COOKING APPARATUS .................99/449
  HORIZONTALLY ATTACHED RECEPTACLE
     SETS ...........................220/23.4


SECURING MEANS SEE CONNECTION; LOCK; RETAINERS
  CLOSURE ...........................292
     ADJUSTABLE BACKSET .............292/1.5
     BENDABLE .......................292/253
     LOCKS ..........................70
     PORTABLE .......................292/289+
  GRILLE ............................52/507
  RIMS LAND VEHICLES ................152
     DEMOUNTABLE ....................301/11.1+
  SHEATHING .........................52/506+
     SHINGLE TYPE ...................52/443+
  SHEET MEMBERS
     BILLIARD CLOTH .................473/30
     FABRIC (SEE NOTES TO) ..........160/382+
  SHEET MEMBERS ON DRUMS ............346/138
  SPOKES ............................157/1.55
  TIRES LAND VEHICLES ...............152
  TIRES RAILWAY .....................295/15+
  VEHICLE PARTS
     BODIES .........................296/35.1+
     BODIES ON & OFF FREIGHT         410/77+
       CONTAINING ...................410/77
     MUD GUARDS .....................280/154
     TOP AND SIDE BOARDS ............296/36
  WHEELS RAILWAY ....................295/43+

SECURITIES, COMMODITIES
  COMPUTER CONTROLLED, MONITORED ....364/408

SECURITY INSTRUMENTS ................ D10/104+
  METAL DETECTOR FOR AIRPORTS .......340/568+
  METAL DETECTOR FOR LIBRARY BOOKS ..340/572

SEDIMENT
  FEED HEATER VALVE .................122/429
  FILTER COMBINED ...................210/299+
  LIQUID PURIFICATION OR SEPARATION
     AUTOMATIC DISCHARGE ............210/112+
     GRAVITATIONAL APPARATUS ........210/513+
     GRAVITATIONAL PROCESS ..........210/800+
     PRECIPITATION PROCESS ..........210/702+


SEED
  COATED OR IMPREGNATED .............47/57.6
     WITH ANTIDOTES, BIOCIDES        504/100
       HERBICIDES ...................504/100
  COMMINUTING .......................241/6+
  COOKER ............................422/307+
  DISINFECTING COMPOSITIONS .........424
  EXTRACTION, FATTY OIL FROM SEED ...554/9+
  GERMINATOR ........................47/61
     APPARATUS FERMENTATIVE .........435/287
     FERMENTATION COMBINED ..........435
  PELLET PLANTERS ...................111/914*
  PROTEINS ..........................530/370
     COATING OR PLASTIC COMPOSITIONS 106/154.1
       CONTAINING ...................106/154.1
  REMOVING OR SEPARATING
     DECORTICATING COMBINED .........19/6
     FRUIT APPARATUS ................99/547
     FRUITS AND VEGETABLES PROCESSES 426/484+
     GINNING ........................19/39+
  ROD HOLDERS .......................156/DIG.98
  SEEDLING CONTAINERS ...............47/77
  SEEDLING TRANSPLANTERS ............47/77+
  STRIPPING OR GATHERING ............56/126+
     MOTORIZED ......................56/12.9+
     THRESHING TYPE .................460/123+
  TAPES .............................47/56
     MAKING, METHODS OF .............53/467+
     PLANTING .......................111/199
  TESTERS ...........................47/14+
  UNTREATED .........................80/250+

SEED CORN STRINGERS ................. 139/19

SEED PULLING, CRYSTALIZATION ........ 156/617.1+

SEEDING ............................. 111
  CRYSTAL GROWING OR FORMING ........23/301
     SUGAR MAKING OR REFINING .......127/60


SEESAW
  AMUSEMENT DEVICE ..................472/106+
     COMBINED WITH ROUNDABOUT .......472/4+
     DESIGN .........................D21/251
  AMUSEMENT RAILWAY
     CAR DRIVE ......................104/80
     SWINGING CAR ...................104/81
     TRACK ..........................104/79
  FIGURE TOY ........................446/322

SEGER CONE .......................... 374/106

SEGMENT
  CLOSURE FASTENER KEEPER ...........292/341
  HARVESTER PLATFORM ADJUSTER .......56/215+
  NUCLEAR FUEL ......................376/429
  PINION ............................74/32
  RIM GEAR ..........................74/448
  SHIP STEERING MECHANISM ...........114/159

SEGMENTER ........................... 30/114
  CORER COMBINED ....................99/545+
     PARER COMBINED .................99/543

SEINE NEEDLES ....................... 87/60

SEINES .............................. 43/14


SEISMOLOGY
  COMPUTER CONTROLLED, MONITORED
     ARTIFICIAL INTELLIGENCE ........395/929*
  SEISMIC WARE PROSPECTING
     (SEE PROSPECTING)
     COMPUTER COMBINED APPARATUS ....367/60
     EARTH BORING COMBINED ..........175/1
     INSTRUMENTS ....................33/1.HH
  SEISMOGRAPHS OR SEISMOMETERS ......181
     ELECTRO-ACOUSTIC ...............367/14+
     MECHANICAL .....................73/649+
       RECORDING ....................346/7
     SUBMARINE SIGNALING ............367/15+
     VIBRATION TESTING ..............73/649+

SELECTIVE DELIVERY
  CHARGING DISCRETE LOADS TO PLURAL  414/266
     STATIC STRUCTURES ..............414/266
  CONVEYOR POWER DRIVEN .............198/348+
  MATERIAL TREATMENT
     DIFFERENTIALLY COMMINUTED MIXED 241/14
     PRECEDING SORTING ..............209/4+
  PNEUMATIC DISPATCH ................406/1+
  RAILWAY ...........................104/88
  SIGNAL AND SWITCH
     ELECTRIC ANNUNCIATOR ...........340/500+
     ELECTRIC SIGNAL ................340/825+
     RAILWAY AUTOMATIC SWITCH .......246/323
     RAILWAY FACING SWITCH ..........246/424+
     RAILWAY TRAIN DISPATCHING ......246/5
     STORE SERVICE ..................186/20+
     TELEPHONE HOOK SWITCH ..........379/424+
     TELEPHONY AUTOMATIC SWITCHES ...335/108+
     TIME CONTROLLED ALARM ..........340/309.15+
  STORE SERVICE
     CABLE PROPULSION ...............186/15
     GRAVITY SYSTEM .................186/3
     SWITCHES .......................186/20+
  SUSPENDED ROAD VEHICLE UNLOADING ..414/377+

SELECTIVE SYSTEMS ................... 340/825+
  FOR CONTROL IN WELL BORE ..........340/853.3+


SELECTOR
  DISPENSING MAGAZINE
     STACKED ARTICLE EJECTOR ........221/92+
  ELECTRIC ANNUNCIATOR STATION ......340/286.11+
  ELECTRIC ORGAN TONE PARTIALS ......84/615+
  GEAR SHIFTING .....................74/342+
  LABEL PASTING MACHINE .............156
  LOCK OR LATCH OPERATOR
     FOR CABINETS ...................312/215
  LOCK TUMBLER TYPE .................70/305
  MUSICAL AUTOMATIC INSTRUMENT ......84/115+
  MUSICAL INSTRUMENT KEY ............84/442
  PHONOGRAPH CABINET DISK RECORD ....312/9.11+
  PILE FABRIC SELECTED WARP .........139/404+
  PLANETARY GEARING .................475/131+
  PRINTING TELEGRAPH ................178/33.R+
  PRINTING TELEGRAPH PAGE ...........178/27
  PUNCH .............................234
     CODED ..........................234/94+
  RAILWAY DUMP CAR DOOR .............105/287
  TABULATOR COLUMN ..................40/284+
  TELEPHONE AUTOMATIC TESTING .......379/17
  TEXTILE WARP PREPARING ............28/202
  TYPEWRITER CASE ...................40/251+
  WEAVING SEPARATE WEFT .............139/453
  ZITHER CHORD ......................84/286+

SELENAZINE .......................... 544/1

SELENAZOLE .......................... 548/100

SELENIUM ............................ 423/508
  CELL
     GENERATOR TYPE .................136/243
     RESISTIVE TYPE .................338/15+
  COATING ...........................437
     ELECTROLYTIC ...................205/316+
  COMPOUNDS
     BINARY .........................423/509
     ORGANIC ........................562/899
     TERNARY OXY ....................423/508
  MISC  CHEMICAL MANUFACTURE ........156/DIG.72
  RECTIFIER .........................257
     MAKING .........................29/25.1+
       PROCESS ......................437


SELF ALIGNING BEARINGS
  BALL ..............................384/495+
  PLAIN RADIAL ......................384/192+
  PLAIN THRUST ......................384/193+
  RAILWAY CAR BRASSES ...............384/191.1
  SHAFT HANGERS .....................384/205

SELF BAKED ELECTRODES FURNACE
  ARC ...............................373/60+
  ELECTROLYTIC APPARATUS ............204/225+

SELF BINDING
  CORNSTALK CUTTERS .................56/67+
  SHOCKERS ..........................56/429
  SHOCKERS AUTOMATIC FEED ...........56/403+

SELF HEALING
  STOCK MATERIAL ....................428/912*
  TIRES .............................152/502+

SELF HEATING
  ARTICLE, BY ELECTRICITY ...........219/201+

SELF LEVELING
  FURNITURE .........................114/191+
  SUPPORT ...........................248/182
  TANK OR BOILER ....................280/7
  VEHICLE BODY ......................280/840+

SELF LOADING VEHICLE
  EXCAVATOR .........................37/304+
  ROAD VEHICLE ......................414/467+


SELF SERVICE
  PLURAL RELATED SURFACES 108/102+
     HORIZONTALLY ADJUSTABLE ........108/102+
  STORES ............................52/33
  TABLES, POWER DRIVEN SURFACE ......108/20+
  TABLES, TERRACED ROTATABLE ........108/94+

SELF STARTER FOR ENGINES
  DYNAMOELECTRIC ....................290
  MECHANICAL ........................123/179.1+

SELF WINDING
  CLOCKS ............................368/148
  SPRING & WEIGHT MOTORS COMBINED ...185/7
  SPRING MOTOR ......................185/40.R+
     PLURAL .........................185/11+
  TOYS SPINNING .....................446/249
  WATCHES ...........................368/207
  WEIGHT MOTOR ......................185/33

SELSYN .............................. 318/692+
  COMMUNICATION SYSTEMS .............340/315
  TELAUTOGRAPH ......................178/19+
  TELEMETERING ......................340/870.34

SELVAGE
  EDGE COATING ......................427/285
  FORMING ...........................139/430
  KNITTING
     WELT FABRIC ....................66/172.R+
     WELT MACHINES ..................66/95+
  TRIMMING ..........................26/11+
     ON LOOM ........................139/302+
  WEAVING
     WARP TRAVERSING ................139/54
     WEFT LOOP RETAINERS ............139/195


SEMANTIC NETWORK
  EXPERT SYSTEM .....................395/63
  LINGUISTICS .......................364/419.1+

SEMAPHORE
  FLAGS .............................116/173+
  HAND SET INDICATOR ................116/319
  SPECTACLE .........................246/484
  STRUCTURE .........................246/479+
  SWITCH STAND ......................246/409
  TRAIN DISPATCHING .................246/18

SEMI-COMPOUND STEAM ENGINES ......... 91/8+

SEMICARBAZIDE ....................... 564/34

SEMICARBAZONES ...................... 564/36

SEMICONDUCTIVE ALLOYS ............... 420/903*

SEMICONDUCTOR DEVICE AMPLIFIER  SEE AMPLIFIER; TRANSISTOR
  LASER INDUCED DIFFUSION OF IMPURITIES INTO SEMICONDUCTOR
     SUBSTRATES METHOD ..............437/16+
  MAKING ............................29/25.1+
     COATING BY .....................437
     ETCHING BY .....................156/625+
     MESA FORMATION .................156/649+
     PHOTO ETCHING BY ...............430/311+
     PROCESS ........................437


SEMICONDUCTOR DEVICE MAKING (SEE SEMICONDUCTOR JUNCTION FORMING)
  PROCESS OF MANUFACTURE ............437
     APPLYING CORPUSCULAR OR
       ELECTROMAGNETIC ENERGY .......437/173
     COATING AND ETCHING ............437/228
     COATING OR MATERIAL REMOVAL ....437/225+
     DICING .........................437/226+
     DIRECTLY APPLYING ELECTRIC
       CURRENT ......................437/170+
     ELECTROLESS COATING ............437/230
     FORMING SCHOTTKY CONTACT .......437/175+
     INCLUDING SHAPING ..............437/249
     MAKING OR ATTACHING ELECTRODE ..437/180+
     SECURING COMPLETED DEVICE TO
       MOUNTING OR HOUSING ..........437/180+
     TEMPERATURE MODIFYING PROPERTY  437/247+
       OF DEVICE ....................437/247+
  SELF-ALIGNING DEVICE ..............437/984*

SEMICONDUCTOR JUNCTION FORMING
  DIFFUSING DOPANT ..................437/142+
     FROM MELT ......................437/159
     FROM SOLID SOURCE IN CONTACT
       WITH SUBSTRATE ...............437/160+
     FROM VAPOR PHASE ...............437/165+
     SHALLOW ........................437/950*
  DOPING WITH MATERIAL DEPOSITION ...437/81+
  FUSING DOPANT WITH SUBSTRATE ......437/134+
  HETEROEPITAXY .....................437/126+
  ISOLATION .........................437/61+
  LIQUID AND VAPOR PHASE EPITAXY IN  437/117+
     SEQUENCE .......................437/117+
  PLURAL DEVICE FORMATION ...........437/51+
  SHADOW MASKING ....................437/80
  SINGLE LAYER MULTI-STEPS ..........437/108+
  SLIDING LIQUID PHASE EPITAXY ......437/119+
  TIPPING LIQUID PHASE EPITAXY ......437/125+
  USING ELECTRIC CURRENT ............437/113
  USING ENERGY BEAM .................437/16+
     COHERENT LIGHT BEAM ............437/19
     ION BEAM .......................437/20+
     IONIZED MOLECULES ..............437/18
     NEUTRON, GAMMA RAY, ELECTRON
       BEAM .........................437/17
  USING SEED LIQUID PHASE EPITAXY ...437/114+
  VACUUM GROWING MATERIAL USING      437/105+
     MOLECULAR BEAM .................437/105+


SEMITRAILER ......................... 280/423.1+

SENSING (SEE NOTE 4 TO DEFINITION OF) 73
  NUCLEAR REACTION CONDITION ........376/245
     CONTROL COMBINED ...............376/207

SENSITIZING PHOTOGRAPHIC ............ 430/495+
  COATING PROCESSES .................430
  DEVELOPING COMBINED ...............430/401+
  SENSITIZED ELEMENTS ...............430/495+

SEPARATION,PROTEINS ................. 530/412+


SEPARATOR AND SEPARATING  SEE
 PURIFIERS; SCREEN; SIFTER ..........427/247
  BATTERY ...........................429/247+
  CENTRIFUGAL
     ADHESION .......................209/60
     ASSEMBLING APPARATUS ...........29/279
     ASSORTING ......................209/642
     FERMENTATION APPARATUS .........435/287
     FILTERS ........................210/360.1
     FLUID SUSPENSION ...............209/199
     FORAMINOUS BASKET ..............68/23.R
     IMPERFORATE BOWL ...............494
       AUXILIARY FLUID SUPPLIED .....494/23+
       BEARING ......................494/83
       BOWL .........................494/43+
       CONDITION RESPONSIVE .........494/1+
       COUNTERCURRENT FLOW ..........494/22
       CYCLIC OR TIMED ..............494/11
       FILTERING ....................494/36
       HEATING OR COOLING ...........494/13+
       INDICATING, INSPECTING, ETC ..494/10
       INVOLVING GASES ..............494/900*
       INVOLVING MERCURY ............494/902*
       INVOLVING OIL ................494/901*
       LUBRICATION ..................494/15
       PROCESS ......................494/37
       RECIRCULATION ................494/35
       SAFETY .......................494/12
       SEALS AND SEALING ............494/38+
       VIBRATION DAMPING ............494/82
     OIL DEYHYDRATION ...............208/187
     SUGAR APPARATUS ................127/19
     SUGAR MANUFACTURE ..............127/56
     VORTICAL WHIRL GAS .............55/447
  COATING OR IMPREGNATING ...........427
  CREAM .............................220
  DIAMAGNETIC .......................209/212
  DRYING ............................34
     EXHAUST VAPORS .................34/79+
  EGG ...............................99/497
  ELECTROLYTIC ......................204/295+
  FIBER THREAD AND FABRIC
     LOOM REPLENISHING ..............28/202
     PNEUMATIC CLEANING .............19/205+
     SHEET CONVEYING AND ............271/4+
     SHEET FEEDING AND ..............271/10+
     SHOE SOLE SEWING ...............112/29
     TEXTILE FIBER LIBERATING .......19/1+
     TOBACCO LEAF DISINTEGRATING
       WITH .........................131/312
  GAS ...............................95
     BEER DISPENSING ................137/170.1+
     BOILER .........................122/488+
     FURNACE DRAFT REGULATORS .......110/148
     HEAT EXCHANGE SURFACE TYPE
       CONDENSER ....................165/111+
     LIQUEFACTION PROCESSES WITH ....62/11+
     LIQUEFIERS AND .................62/36+
     LIQUID SEPARATION
       COMBINED .....................55/421
       PROCESS COMBINED .............95
     METERS WITH LIQUID AND .........73/200
     PNEUMATIC FIBER CLEANING .......19/205
     SEPARATE FLUID HEATED
       BOILER WITH ..................122/34
     WELL COMBINED ..................166/265+
  GLASS MOLD ........................65/357+
  GRAIN SCOURERS WITH ...............99/600+
  GRAIN THRESHING ...................460/79+
  LIQUID ............................210
     BEVERAGE INFUSING APPARATUS ....99/279+
     BEVERAGE PROCESSES MILK FAT ....426/491
     CHEMICAL EXTRACTING OR LEACHING 422/261+
     CONCENTRATING EVAPORATOR LIQUID 159/31
     CRYSTAL PRODUCING AND ..........159/45
     ELECTRICAL APPARATUS FOR .......204/302+
     ELECTRICAL PROCESSES FOR .......204/186+
     ELECTROLYTIC TREATMENT .........204/130+
     ELECTROPHORESIS OR ELECTRO
       OSMOTIC ......................204/181.8+
     FROM SOLID SEPARATORS ..........4/DIG.19
     GAS CONTACT APPARATUS WITH .....261/2+
     GAS OPERATED MOTOR CONDENSATE ..415/169.2+
     GAS SEPARATION COMBINED ........55/421
       PROCESS ......................95
     OIL RESIDUES FROM PARAFFIN .....208/30+
     PAPER MAKING ...................210
     PARAFFIN FROM MINERAL OIL ......208/28+
     SUGAR STARCH ETC MAKING ........127
     YEASTS FERMENTS ETC ............435/261
  MAGNETIC
     FOR SEPARATING IRON PARTICLES
       FROM OTHER SUBSTANCES ........209
     FOR SEPARATING MICROORGANISMS ..435/173.9
  METAL FOUNDING MOLD ...............164/358
     SPRUE ..........................164/262+
  ORE METAL AND COAL ................422
  POTATO DIGGER BEARING WHEEL .......171/112
  REFRIGERATION .....................62
     PROCESS ........................62/85
  SOLIDS ............................209
     ADHESION .......................209/45+
     ADHESION COMBINED ..............209/12+
     COMMINUTION COMBINED ...........241
     ELECTROSTATIC ..................209/127.1+
     FLOTATION ......................209/162+
     FLUID HANDLING COMBINED ........137/544+
     FLUID SUSPENSION ...............209/132
       COMBINED .....................209/13
       GASEOUS ......................209/133+
       GRAIN SCOURERS ...............99/518+
       LIQUID .......................209/155+
       WITH CEREAL COMMINUTING ......241/9+
       WITH COMINUTING PROCESS ......241/19
       WITH COMINUTION ..............241/38+
       WITH REFRIGERATION ...........62/317
     FUSIBLE FROM NONFUSIBLE BY HEAT 422/307+
     GASEOUS SUSPENSION .............209/133
       GRAIN SCOURERS ...............99/518+
       SIFTING ETC ..................209/12+
       WITH CEREAL COMMINUTING ......241/9+
       WITH COMMINUTING PROCESS .....241/19
       WITH COMMINUTION .............241/38+
       WITH GAS SEPARATION ..........95
     ICE CUBE TRAY ..................249/69+
     MAGNETIC .......................209/212+
       COMBINED .....................209/12+
       PRETREATMENT .................209/8
       SIFTER ACTUATING ELEMENTS ....209/368
       STRATIFIERS ..................209/478
     MERCURIAL ADHESION .............209/45+
     MERCURIAL ADHESION OR MERCURIAL 204/99
       ELECTROLYTIC SYNTHESIS
       OF METALLIC OXIDES ...........204/99
     MERCURIAL IN METALLURGY ........75
     MERCURY ALLOY ELECTROLYTIC
       SYNTHESIS ....................204/124
     MERCURY SUSPENSION .............209/174
     METALLURGICAL ..................75
     MINING AND QUARRYING WITH ......299/7+
     MOLTEN METAL ...................266/227+
     PRESERVATIVE COMPOSITIONS ......252/381+
     SCRAP METAL SALVAGING ..........29/403.3+
     SIFTING ........................209/233+
       COMBINED .....................209/12+
       COMBINED WITH GRAIN HULLING ..99/601+
       GAS BORNE COMMINUTED MATERIAL 241/49+
       SCREEN WITH COMMINUTOR .......241/69+
     SIFTING THROUGH COMMINUTING ....241/83
       SURFACE ......................241/83+
     STRATIFYING ....................209/422+
       COMBINES .....................209/12+
       ELECTROSTATIC ................209/131
     SUSPENSION COMBINED ............209/12+
  STRAND SPINNING ETC ...............57/354
  STRUCTURALLY DEFINED ..............429/129+
  TOBACCO FEEDING
     CIGAR MAKING ...................131/110
     CIGAR MAKING BUNCH .............131/40+
     LEAF DISASSOCIATING ............131/327
  TOBACCO STEMMING ..................131/313+
  TOOTH .............................433/148
  TYPE MATRIX SEPARATOR .............199/42
     DISTRIBUTING TO MAGAZINES ......199/41
  TYPESETTING LINE ..................276/35
  VEGETABLE DISINTEGRATOR AND .......241/68+
  WELDLESS CHAIN MAKING LINK ........59/11
  YEASTS ETC FROM LIQUIDS ...........435/261


SEPTIC FIELD ........................ 405/36

SEPTIC TANKS ........................ 210/513+
  CONSTRUCTION ......................52
     PURIFICATION ...................210/601+
  GRAVITATIONAL SEPARATOR COMBINED ..210/513+

SERA ................................ 424

SERRATING EDGES FOR TOOL SHARPENING . 76/89.1

SERREFINES .......................... 606/221+

SERUMS .............................. 424

SERVER AND SERVICE .................. 186
  CART ..............................D34/14+
  STRIP SERVER FOR COATING MACHINE ..118/40+
  TABLE SELF SERVICE
     PLURAL RELATED SURFACE
       HORIZONTALLY ADJUSTABLE ......108/102+
     POWER DRIVEN SURFACE ...........108/20+
     TERRACED ROTATABLE .............108/94+
  TIMING MECHANISM FOR TELEPHONE
  TRAIN CONTROL SERVICE STOP ........246/184
  TYPE CASE FEEDING .................276/45


SERVICE STATION
  BUILDING TYPE .....................137/234.6
  CANOPY COMBINED WITH PUMP .........D15/9.1+
  DISPENSERS ........................D15/9.1+
  GASOLINE PUMP .....................D15/9.1+
  LUBRICATOR OR OIL COLLECTOR .......D15/151+
  MOBILE UNIT .......................D12/14+

SERVOMOTOR
  ELECTRIC SYSTEM ...................318/560+
  HYDRAULIC .........................91