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:


BEATER
  AGITATOR ..........................366/343+
  CLEANING ..........................15/89+
     IMPLEMENTS .....................15/141.1+
       ROTARY .......................15/141.2
  CLOTH FINISHING ...................26/25+
  COMMINUTING PROCESSES .............241/27
  DRUM AND CYMBAL ...................84/422.1
  FIBER LIBERATION AND PREPARING ....19/85+
     BRAKES AND BEATERS .............19/30
     DECORTICATING ..................19/33
  FOWL DEFEATHERING .................452/87+
  HEAT EXCHANGING ...................165/92
  MEAT TENDERIZER ...................452/141+
  PAPER FIBER ENGINE ................241/97
  PASTRY AND CONFECTION .............366/69+
  ROTARY BEATER MILL ................241/185.5+
     PERFORATE CASING ...............241/86+
  SCREEN ............................209/299
     CLEARER ........................209/383
  SHOE WELT .........................12/67.2
  TEXTILE BRAIDER AND ...............87/36
  WIRE TWISTER AND ..................140/32
     PORTABLE MACHINE ...............140/42

BEAUTY PARLOR EQUIPMENT ............. D28/9+


BED SEE ASSOCIATED MACHINE OR TOOL .. 5
  ACTIVATED SLUDGE ..................210/623+
  ANIMAL ............................119/28.5
     DESIGN .........................D30/118
  ATTACHMENTS AND ACCESSORIES .......5/658+
  BACKPACK CONVERTIBLE TO ...........224/156
  BAGGAGE CONVERTIBLE TO ............190/2
  BEDDING ...........................D06/382
  BEDSTEAD ..........................5/131+
  CAMPING LAND VEHICLE ..............296/174
  CLOTHES HOLDER ....................24/72.5
  CLOTHING ..........................5/482+
     BED ATTACHED ...................5/498
     WEIGHT SUPPORTING ..............5/505.1
  COMBINATION FURNITURE .............5/2.1+
  COOLING ...........................5/284
     HEATER COMBINED ................165/46
     MATTRESS .......................5/421+
     REFRIGERATING ..................62/261
  CRIB ..............................5/93.1+
  DESIGN ............................D06/382
  DOLL OR TOY .......................446/482
  EXERCISING DEVICE .................482/142+
  FAN COMBINED ......................416/146.R
  FILTER (SEE FILTER)    
  FRAME COMPONENT ...................D06/503+
  GARMENT     
     GOWN TYPE ......................2/114
     PAJAMA TYPE ....................2/83
  GLASS MOLDING
     PLANAR PLATEN ..................65/256+
  HEATER ............................126/205
     COOLING COMBINED ...............165/46
     ELECTRIC .......................219/217
     MATTRESS .......................5/421+
     MATTRESS ELECTRIC ..............219/217
     MEDICATOR COMBINED .............604/113+
     SURGICAL .......................607/115+
  HORTICULTURAL .....................47/18
  HOTBED ............................47/19
  INVALIDS ..........................5/600+
  JACKET OR HOUSECOAT ...............D02/724+
  LIGHT COMBINED ....................362/130
  LIGHT THERMAL ELECTRICAL ..........607/115+
     APPLICATION ....................607/88+
  MACHINE OR TOOL PART   
     ADDRESSING MACHINES ............101/57+
     APPAREL PLAITING, FLUTING,
       SHIRRING .....................223/31
     BED AND PLATEN PRINTING ........101/287+
     CLOTHES PRESSING PLATEN ........38/17+
     CLOTHES PRESSING ROLL ..........38/44+
     CLOTHES WASHING SCRUBBING ......68/63+
     CLOTHES WASHING SQUEEZING ......68/94+
     COOPERING STAVE JOINTING .......147/26
     GLASS MOLDING ..................65/361
     INKERS FOR PRINTING DEVICES ....101/335+
     INTAGLIO PRINTING BED AND
       CYLINDER .....................101/158+
     LATHE ..........................82/150
     METAL BENDING ..................72/214+
     MULTICOLOR PRINTING BED AND
       CYLINDER .....................101/186+
     NUMBERING AND PRINTING .........101/72+
     PLANER RECIPROCATING BED .......409/321+
     PLANERS WOODWORKING ENDLESS ....144/128
     PLANOGRAPHIC COPYING ...........101/131+
     PLANOGRAPHIC PRINTING BED AND
       CYLINDER .....................101/146
     PRINTING MEMBER AND INKER ......101/104+
     ROLLING CONTACT PRINTING BED
       AND CYLINDER .................101/214+
     SELECTIVE OR PROGRESSIVE BED
       AND PLATEN PRINTING ..........101/93+
     SOLID MATERIAL STRATIFIER ......209/422+
     TICKET PRINTING ................101/66+
  MATTRESS OR CUSHION ...............5/448+
     DESIGN .........................D06/596+
  MIDRIB AND CENTER STRIP ...........5/192
  MODULAR BEDROOM LIGHTING ..........362/801*
  MOSQUITO NETS AND CANOPIES ........5/414+
  PAN ...............................4/450+
     DESIGN .........................D24/123
  PARTICULATE MATERIAL SEPARATOR ....210/263+
  PAVEMENT OR ROAD ..................404/27+
  PERSON RESTRAINER FOR .............128/869+
  QUILTS ............................D06/603+
  RAILWAY CAR WITH ..................105/316+
  SHIPS .............................114/188+
  SLEEPING BAGS .....................5/413
  SOFA ..............................5/12.1+
  SPREAD OR COVER ...................D06/596+
  SUPPORTED HORIZONTAL SURFACE ......108/49
  TRAY ..............................D06/406
  TRUNKS CONVERTIBLE ................190/2
  WATERBED ..........................5/451
  WINDOW VENTILATOR COMBINED ........454/197
  WIRE BOTTOM FRAME ATTACHING .......140/110

BEDBUG TRAP ......................... 43/123

BEDPAN .............................. 4/450+
  DESIGN ............................D24/123
  RINSER IN FLUSH TOILET ............4/300.2


BEDPLATE (SEE BASES)

BEDROOM LIGHTING, EG MODULAR
 COMBINATIONS .......................362/801*

BEDSPREAD ........................... D06/596

BEDSTEADS
  DESIGN ............................D06/382
  FOLDING ...........................5/174+

BEE CULTURE ......................... 449
  BEESWAX PURIFICATION ..............554/175+
  FEEDER ............................449/5+
  HIVE ..............................449/3+
  HONEYCOMB TYPE RECEPTACLE .........449/17+
  SMOKERS ...........................43/127+

BEEF JACK
  CLOSURE OPERATORS .................49/69
  TROLLEY TRANSFER ..................104/97

BEER ................................ 426/592
  APPARATUS FOR MAKING ..............99/275+

BEESWAX PURIFICATION ................ 554/175+


BEET
  HARVESTING DEVICES ................171
     DIGGING THEN TOPPING ...........171/26+
     LIFTERS ........................171/50+
     TOPPING THEN DIGGING ...........171/26+
  TOPPERS ...........................56
  WASHERS ...........................15/3.1+

BEETLING ............................ 452/64

BEHEADER ............................ 452/64

BELAYING PIN ........................ 114/221.R

BELL
  AND HOPPER CHARGER ................414/204
     COMBINED WITH BLAST FURNACE ....266/184
  ANIMAL AND SLEIGH .................116/170
  AUTOMATIC MUSICAL INSTRUMENTS .....84/103
  BICYCLE ...........................116/166
  CHURCH ............................116/150
  DESIGN ............................D10/116
     COMBINED WITH ESCUTCHEON .......D08/350+
  ELECTRIC ..........................340/392+
  ELECTRICALLY ACTUATED SIGNALS .....340/392+
  ELECTRICALLY SIMULATED CHURCH BELL 340/398
  GAS HOLDER  
     INVERTED BELL AND TANK .........48/176
     MOVING BELL ....................48/179
     SECTIONAL TELESCOPING BELL .....48/177
  GLASSES FOR PROTECTION OF PLANTS ..47/26+
  HIGHWAY CROSSING TYPE .............246/296
  MECHANICAL ........................116/148+
  MUSICAL BELL ......................84/406
     DESIGN .........................D17/22
  MUSICAL BELL WITH STRIKER .........84/407
  ORNAMENTAL ........................428/11
  RAILWAY CROSSING PROTECTION .......246/111+
  SIGNALS & INDICATORS ..............116/148+
  SOUND PRODUCING ...................116/148+
  SWINGING EG CHURCH ................116/150
  TYPEWRITER MARGIN SIGNAL ..........40/712+


BELLOWS ............................. D23/384
  ACCORDIONS ........................84/376.R
  CAMERAS ...........................354/187+
  DISPENSER .........................222/206+
  FLUID PRESSURE RESPONSIVE .........92/3+
  MAKING ............................29/454
     METAL TUBE CORRUGATING .........72/54+
     X-ART COLLECTION ...............493/940*
  METER .............................73/262+
  ORGANS ............................84/355+
  PUMP ..............................417/472+
     FUMIGATOR COMBUSTION AIR .......422/305


BELT (SEE MACHINE WITH WHICH ASSOCIATED)
  APPAREL ...........................2/311+
     COMPRESSOR TYPE ................450/154
     DESIGN .........................D02/627+
     DESIGN, GARTER OR SANITARY .....D02/625
     ELEMENTS OF SUPPORTERS .........2/338+
  BUCKLE ATTACHED ...................D02/627+
  CARRIER MOUNTED ONTO ..............224/163
  CARTRIDGE FEEDING .................89/35.1+
  CIGAR AND CIGARETTE TYPE MACHINE ..131/55
  COMMINUTOR TYPE ...................241/200
  CONVEYORS (SEE CONVEYOR, ENDLESS) 
     FOR DREDGES ....................37/337
  COUPLERS ..........................24/31.B+
     HOOK ...........................24/35
     LACING .........................24/34
  DESIGN ............................D02/627+
  DRIVE TRAIN DESIGN ................D15/148
  DRIVES ............................474
  ENDLESS FOR VEHICLE FENDER ........293/20
  FASTENER ..........................24/31.R+
     STRUCTURE
       FOR NUCLEAR REACTOR MODERATOR 376/302
  GEARING ...........................474
     COATING TO PREVENT SLIPPAGE ....106/36
  HANGER ............................D06/315+
  HOLDER FOR CARTRIDGES,FISHING LURESD03/100
  HOLDER OR RACK ....................D06/315+
  HOLSTER COMBINED ..................D03/101
  HOOK INSERTERS ....................29/243.51
  LIFTING TOOL ......................474/130
  MAKING ............................156/137+
     OF LEATHER .....................69
     SPECIAL SEWING MACHINE .........112/121.27
  MECHANISMS  
     BELT AND SPROCKETS .............474
     GUARDS .........................474/144
  MONEY .............................224/229
  PAPER MAKING
     ENDLESS DRYING .................34/243.R
     FOURDRINIER ....................162/348
  PULLEYS ...........................474
  REGISTERS .........................235/125
  REINFORCED (SEE REINFORCEMENT,
     FABRIC) ........................474/268+
  SAFETY ............................182/3+
     AIRCRAFT .......................244/122.B
     VEHICLE SEAT ...................297/464+
       HAND VEHICLE .................280/801.R+
       MOTOR VEHICLE ................180/268+
  SEAT BELT SAFETY BUCKLE ...........D11/200+
  SHIFTER ...........................474/101+
     FOR VARIABLE SPEED DRIVE .......474/80+
     STARTING GAS PUMPS AND FANS ....417/223
  STOCK MATERIAL ....................428
     CONVEYOR TYPE ..................198
     DRIVE TYPE .....................474/237+
     KNITTED ........................66/169.R+
     LAMINATED ......................428
     WOVEN ..........................139/383.R+
  SUPPORT IN LEATHER WORKING MACHINE 69/41
  TIGHTENER SEE NOTES UNDER .........474/101+
     ABRASIVE BELT ..................51/148
     BAND TYPE TWISTING APPARATUS ...57/105
     BELT TYPE DRYING APPARATUS .....34/118
     RAILWAY WHEEL AND AXLE DRIVE ...105/105+
  TOOL HOLDER CARRIED BY ............224/904*
  TREE TRUNK GUARDS .................47/24
  TRUSSES SURGICAL ..................128/99.1+
  V-TYPE ............................474/237+

BENCH
  CABINET COMBINED ..................312/235.2+
  GREENHOUSE ........................47/18
  LADDER COMBINED ...................182/33
  SHOEMAKERS ........................12/122
  TABLE .............................108
  WASH TUB OR MACHINE ...............68/236
  WOODWORKING .......................144/286.R+
     CLAMPS .........................269
     DESIGN .........................D06/396+
     DOGS ...........................144/306+
     SUPPORT FOR ....................144/286.R
     TOOL CHEST COMBINED ............144/285

BENCH MARK .......................... 52/103
  BED PLATE .........................52/292+


BENDING (SEE CRIMPING; FOLDING)
  BRAKE .............................72/310
  CHAIN MAKING MACHINES .............59/27
     SHEET METAL ....................59/15
  HOOF AND SHOE EXPANDERS ...........168/47
  HORSESHOE MAKING MACHINES .........59/36+
  LOCK WASHER MAKING MACHINES .......470/162+
  METAL
     MACHINES AND PROCESSES FOR .....72
     MACHINES COMBINING WITH OTHER
       METAL SHAPING ................29/34.R+
     WIRE ...........................140
     WORKING, WITH BENDING ..........29/DIG.3
  NUT MAKING MACHINES ...............470/87+
     OTHER METAL SHAPING ............72
  SCALE REMOVAL BY FLEXING ..........29/81.3+
  SHEET METAL SEAMING BY SHAPING ....228/144
  SHEET METAL SEAMING MACHINES ......72/48+
  SHEET METAL SEAMING PROCESSES .....228/137
  STAPLE MAKING AND SETTING
     APPARATUS ......................227/82+
  STAPLE MAKING MACHINES ............59/71
  STRENGTH OF MATERIALS TESTING BY ..73/849+
  SWEEP ARM BENDER ..................72/217
  TUBES .............................72/367+
  WOOD ..............................144/254+

BENEFICIATING ORES .................. 423/1+
  APPARATUS .........................266/168+

BENTONITE ........................... 106/DIG.4

BENZ C FLUORAN ...................... 549/224+

BENZALDEHYDE ........................ 568/425

BENZANTHRONES ....................... 552/286+

BENZENE (SEE AROMATIC HYDROCARBON)   

BENZIDINE ........................... 534/822+
  DISAZO COMPOUNDS FROM .............534/822+
  DISAZO PYRAZOLES FROM .............534/760
  TETRAKISAZO COMPOUNDS FROM ........534/808
  TRISAZO COMPOUNDS FROM ............534/813+

BENZOATES
  AMMONIA ...........................562/493
  BENZYL ............................560/106
  BISMUTH ...........................556/78
  CAFFEINE ..........................544/274
  LITHIUM ...........................562/493
  MAGNESIUM .........................562/493
  MERCURY ...........................556/132

BENZOCAINE .......................... 560/19
  IN DRUG ...........................514/535

BENZODIANTHRONES .................... 552/282+

BENZOFURANES ........................ 549/462+

BENZOIC
  ACID ..............................562/493
  ANHYDRIDE .........................562/887

BENZOIN ............................. 568/331

BENZOL (SEE AROMATIC HYDROCARBON)    
  MOTOR SPIRITS .....................585/14

BENZOMORPHANS, IN DRUG .............. 514/295

BENZOPHENAZINES ..................... 544/343

BENZOPHENONE ........................ 568/332

BENZOPYRENEQUINONES ................. 552/284+

BENZOQUINOLINE ...................... 546/101

BENZOQUINOLZINES .................... 546/95

BENZOQUINONE ........................ 552/293

BENZOSELENAZOLES .................... 548/121

BENZOTHIAZINES ...................... 544/49+

BENZOTHIAZOLES ...................... 548/152+

BENZOTHIOPHENES ..................... 549/49+

BENZOTRICHLORIDE .................... 570/185
  PREPARATION .......................570/191+

BENZOXAZOLES ........................ 548/217+

BENZYL
  ALCOHOL ...........................568/715
  BUTYRATE ..........................560/254
  DISULPHIDE ........................568/25
  ETHER .............................568/659
  SALICYLATE ........................560/71
  THIOCYANATE .......................558/10

BENZYLAMINE ......................... 564/391

BERGAMOT OILS ....................... 512/5

BERRY
  CLIPPER     
     CATCHER COMBINED ...............56/331
     HOLDER COMBINED ................30/124+
     NIPPER TYPE ....................30/175+
  CRATES ............................217/40

BERTH
  BUNK BEDS .........................5/9.1+
     SELF LEVELING ..................114/192+
  SLEEPING CAR ......................105/316+


BERYLLIUM
  ALLOY COMPOSITIONS ................420/401
  ELECTROLYTIC SYNTHESIS FROM FUSED
     BATH ...........................204/65
  HEAT TREATMENT ....................148/665
  PYROMETALLURGY ....................75/593

BESSEMER CONVERTER .................. 266/243+

BESSEMERIZING ....................... 75
  IRON OR STEEL .....................75/528+

BETA
  CRYSTAL MOUNTING ..................250/361.R
  GAMMA SURVEY METER ................250/336.1
  WITH SAMPLE HOLDER ................250/336.1

BETA ALANINE ........................ 562/576

BETA GLOBULINS ...................... 530/394

BETAINES ............................ 562

BETHAMETHASONE ...................... 552/574

BEVEL
  GEAR ..............................74/640+
  INTERCONTROLLED BLADES ............33/455
  PLANETARY GEARING .................475/336
  PROTRACTOR ........................33/455
  SQUARE ............................33/474

BEVERAGES ........................... 426
  APPARATUS .........................99/275+
  BEER OR POP CAN ...................206/139
  CAN COVER .........................220/903*
  CARBONATED ........................426/590+
  CARBONATER ........................261
  CARBONATING AND FLAVORING .........99/323.1+
  COASTER OR MAT ....................D07/624
  COOLER ............................62/389+
     FOAM FORMING OR INHIBITING .....137/170.1+
     WITH SELECTION FROM PLURAL
       MATERIALS ....................222/144.5
  ELECTROLYTIC TREATMENT ............204/138+
  MIXER BLENDER,HOUSEHOLD ...........D07/376+
  MIXING
     BY MECHANICAL AGITATING ........366
       MILK SHAKE TYPE ..............366/197+
     BY NOZZLE SHAPE ................239/549
  PREPARATION OR DISPENSING MACHINES D07/300+
  REUSABLE INFUSION RECEPTABLE FOR
     PREPARING BEVERAGES ............99/323
  STORAGE RECEPTACLE ................D07/602+
  VENDING MACHINES ..................D20/5

BEZEL
  DESIGN ............................D26/139
  TEST INSTRUMENT ...................73/431
  WATCH .............................368/295

BIAS VOLTAGE CONTROL IN AN AMPLIFIER  330/129+

BIB ................................. 2/49.1+
  DENTAL PATIENT ....................433/137
  DESIGN ............................D02/861+


BICARBONATE ......................... 423/419.1
  DRUGS OR BIO-AFFECTING ............424/717

BICHROMATE CELLS .................... 429

BICYCLE ............................. 280/200+
  ATTACHED CARRIER ..................224/30.R+
  BELL ..............................116/166
  BRAKE .............................188/24.11+
     COASTER ........................192/6.R
  CONVERTIBLE .......................280/7.1+
  CRANKS AND PEDALS .................74/594.1+
  CYCLOMETERS SEE ODOMETER
  DESIGN ............................D12/111
  DUST AND MUD GUARDS ...............280/152.1+
  EXERCISING DEVICES ................482/57+
  GENERATOR .........................310
     SYSTEM .........................322/1
  HANDLE BARS .......................74/551.1+
  HANDLE OR GRIP DESIGN .............D08/DIG.8
  HORN ..............................116/137.R+
  HUB BALL BEARING ..................384/545
  LIGHTS ............................362/72+
     ELECTRIC SIGNAL ................340/432
     GENERATOR BULB SYSTEM ..........315/76
     GENERATOR CONTROL ..............322/1
     GENERATOR PER SE ...............310
     SUPPORTS .......................362/382+
     WITH WHEEL DRIVEN GENERATOR ....362/193+
  LOCKS .............................70/233+
     WHEEL ..........................70/225+
  MAKING
     FRAME ASSEMBLING ...............29/700+
     METHODS ........................29/428+
  PEDAL CRANK BEARINGS ..............384/431
  PROPELLED MARINE PEDOMOTORS .......440/30
  RACKS .............................211/17+
     RACK OR HOLDER,DESIGN ..........D12/115
  REFLECTOR .........................359/515+
  SEATS .............................297/195.1+
  SIMULATIONS .......................280/828+
  UMBRELLA FOR ......................135/88
  WHEEL .............................301/5.1+
     GUARDS .........................280/160.1
     SCRAPERS AND CLEANERS ..........280/158.1


BIDET ............................... 4/443+
  DESIGN ............................D23/295+

BIER ................................ 27/27
  WHEELED ...........................280/47.34+
     EXTENSIBLE .....................280/640
     TILTABLE .......................280/47.17+

BIFOCAL
  CONTACT LENS ......................351/161
  SPECTACLE LENS ....................351/168+

BILE ACIDS .......................... 552/548+

BILGE DISCHARGE ..................... 114/183.R+

BILIRUBIN ........................... 436/97

BILLBOARD TYPE SIGNS ................ D20/39+

BILLETS ............................. 428/577+
  FAULT REMOVAL .....................29/526.2+
  HARNESS ...........................24/182
     HAME STRAP .....................54/28
     HAME TUGS ......................54/32+
  PIERCING ..........................72/325+

BILLFOLD ............................ 150/132+
  LEATHER, DESIGN ...................D03/56


BILLIARDS ........................... 473/1+
  BALLS .............................473/52+
  CHALK .............................473/35
  CUE REST ..........................473/42+
  CUES ..............................473/44+
     TIPS ...........................473/49+
  DESIGN, CUES AND ACCESSORIES ......D21/210
  REGISTER OPERATING DEVICE .........235/91.B
  TABLES
     BEDS ...........................473/29+
     COVERS .........................473/34+
     DESIGN .........................D21/232
     TOPS ...........................473/29+
  TIMING DEVICE .....................368/3

BILLING MACHINES SEE PRINTERS

BILLS IN KNOTTING ................... 289/11

BILLY CLUB .......................... 273/84.R
  DESIGN ............................D22/117
  GUNS ..............................42/1.16

BILTMORE STICKS ..................... 33/483

BIMETALLIC STOCK SEE THERMOSTATS .... 428/615+
  BONDED LAYERS .....................228/101+
  CASTING ...........................164/91+
  JUXTAPOSE AND BOND LAYERS .........228/101+
  MAKING BY EXTRUSION ...............72/258
  SHAPE OR STRUCTURE ................428/577+
     INGOTS .........................428/585


BIN (SEE BOX; RECEIVERS)  
  CHARGING OR DISCHARGING ...........414/288+
  DEFORMING .........................72/700*
  DISCHARGING (SEE DISPENSING) ......222
     CHARGING AND ...................414/288
  GRANARIES   
  HOPPER WITH PORT ..................52/192+
  SIFTER ASSOCIATED .................209/370+
  VENTILATED GRAIN BINS .............454/182
     GRAIN SHIP .....................454/80

BINARY COMPOUNDS, INORGANIC ......... 423/509+
  URANIUM CONTAINING ................423/253+

BINAURAL ............................ 381/1+


BINDER AND BINDING
  BALING PRESS COMBINED .............10/8+
  BINDER DEVICE RELEASABLY ENGAGING  402
     APERTURE OR NOTCH OF SHEET .....402
     DEPOSITORY .....................402/73+
     EXPANDER .......................402/80.R
     FILLER .........................402/80.R
     FLY-STRIP  FLY-LEAF ............402/80.R
     MARKER  POSITION HOLDER ........402/80.R
  BOOKS .............................412
     DESIGN .........................D19/26+
  COOKING APPARATUS COMBINED ........99/350
  COVERING WITH METAL ...............29/33.2
     SEVERING BASE COMBINED .........29/33.5
  EDGE BINDING GUIDE FOR SEWING .....112/137
  HANDLE OR GRIP DESIGN .............D08/DIG.8
  HARVESTING ........................56/432+
     CUTTER COMBINED ................56/67+
  HAT MAKING ........................223/22
  POST ..............................439/775+
  PRESS .............................10
  RESILIENT SECTIONAL TIRE ..........152/300+
  SKI ...............................280/611+
  SNOW SHOE .........................36/126
  TABLE TOP EDGE ....................52/783+
     LAMINATED TOP ..................52/783+
  TOBACCO PRODUCT ...................131/365
  VEHICLE LOAD ......................410/96+
  WATER SKI .........................441/70
  WIRE OR BAND TENSIONERS
     COMBINED WITH SEALERS ..........140/93.2
     PORTABLE & DETACHABLE ..........254/199+

BINDING
  WITH FLEXIBLE FILAMENT BAND OR
     STRAND .........................10/1+

BINDING ASSAYS ...................... 436/500+

BINGO GAMES ......................... 273/269


BINOCULARS .......................... 359/480+
  CARRIER ...........................224/909*
  CASES .............................206/316.3
  DESIGN ............................D16/133+
  MICROSCOPE ........................359/375+
  TELESCOPE .........................359/407+

BIO-AFFECTING COMPOSITIONS (SEE DRUG,
 BIO-AFFECTING AND BODY TREATING
 COMPOSITIONS) ......................514

BIOCHEMICAL OXYGEN DEMAND TESTS, BOD  436/62

BIOCIDALLY PROTECTED POLYMERS ....... 523/122

BIOCIDES ............................ 424
  COATING OR PLASTIC COMPOSITION ....106/15.5+
  DETERGENT WITH ....................252/106+
  MINERAL OIL DERIVED ...............208/2
  WATER SOFTENING OR PURIFYING
     AGENT ..........................252/175+

BIODEGRADABLE  
  PLANT RECEPTACLE ..................47/74+

BIOLOGY        
  COATING PROCESSES .................427/4
  PRESERVATION ......................47
  TEACHING ..........................434/295+

BIOPSY .............................. 128/739
  BIOPSY DEVICE .....................128/751+


BIOSYNTHESIS ........................ 435

BIOTIN .............................. 548/303.7+
  IN DRUG ...........................514/387

BIPHENYL (SEE AROMATIC HYDROCARBON)  

BIPHOSPHATES, INORGANIC ............. 423

BIRD
  ANTIROOSTING STRUCTURE ............52/101
  ARTIFICIAL ........................428/16
     FEATHER ........................428/6
  BATHS .............................119/69.5
     DESIGN .........................D30/123
  CAGE ..............................119/17+
     DESIGN .........................D30/114+
     PERCHES ........................119/26
     PERCHES, DESIGN ................D30/119+
  CALLS .............................446/204+
  FEEDERS OR WATERERS ...............D30/121+
  FOOD ..............................D01
  HOUSES ............................119/23
     DESIGN .........................D30/110+
  PERCHES OR CAGE ATTACHMENTS .......D30/119+
  REPELLENTS  
     ELECTRIC FENCE .................256/10
     ELECTRIC PROD ..................231/7
     SCARECROWS .....................40
  TRAINING ..........................119/713+
  TRAPS .............................43

BIREFRINGENT ELEMENT
  COLOR TELEVISON ...................358/61
  POLARIZED LIGHT EXAMINATION .......356/365


BIRTH CONTROL (SEE CONTRACEPTIVES)   

BISCUIT PACKAGE ..................... 206/830*

BISCUIT SHREDDED .................... 426/560
  APPARATUS .........................425/289+

BISMUTH
  ALLOYS CONTAINING .................420/577
  MISC  CHEMICAL MANUFACTURE ........156/DIG.79
  ORGANIC COMPOUNDS CONTAINING ......556/64+
  PYROMETALLURGY ....................75/705

BISNORCHOLENIC ACIDS ................ 552/553+

BISPHTHALIMIDES ..................... 548/461+

BISULPHATES, INORGANIC .............. 423/520+

BISULPHIDES ......................... 423/511

BISULPHITES ......................... 423/520
  REDUCING COMPOSITION ..............252/188.21


BIT (SEE CUTTER; DRILL)   
  BENCH PLANE .......................30/493
     BIT CLAMPS .....................30/492
  EARTH BORING ......................175/327+
  FRAME .............................408/53
  GAUGES ............................33/201
  HARNESS BRIDLE ....................54/7+
     DESIGN .........................D30/136
     WEANING TYPE ...................119/831+
  ICE BORING ........................175/18
  ICE CUTTING IN SITU ...............299/24+
  KEY BITTING .......................70/409+
  MINING CUTTER .....................299/79
  STOCK .............................81/28+
     WOOD BORING DOUBLE ENDED BIT
       STOCK ........................408/36
     WOOD BORING MOVABLE WORK
       MACHINES .....................408/62+
       STATIONARY BITSTOCK ..........144/98
     WOOD BORING STATIONARY WORK
       MACHINES .....................408/72.R+
       INCLINED BITSTOCK ............144/100
  TOBACCO PIPE ......................131/227+
  WOOD AUGER ........................408/199+

BITTS ............................... 114/218

BITUMINOUS     
  ABRASIVES CONTAINING ..............51/305
  COMPOSITIONS ......................106/273.1+
  EMULSIONS .........................252/311.5
  MINERAL OIL RECOVERY FROM .........208/400+
  POLYMERS CONTAINING (SEE ASPHALT, POLYMERS CONTAINING)
  ROADS .............................404/17+

BIVALVE OPENER, MARINE ANIMAL ....... 452/13+

BLACK LIQUOR ........................ 106/123.1

BLACKBOARD .......................... 248/441.1+
  CABINET COMBINED ..................312/230
  COMPASSES .........................33/27.2+
  COMPOSITIONS ......................106/32.5
  DESIGN ............................D19/52+
  EASELS ............................248/441.1+
  ERASERS ...........................15/208+
  WRITING SURFACE ...................106/32.5

BLACKBOARDING ....................... 395/53

BLACKING (SEE COATING)    
  BOX ...............................15/258
     APPLICATOR COMBINED ............401/118+
  HOLDER ............................15/259
  STAND .............................15/265+

BLACKJACK ........................... 273/84.R
  CARRIER ...........................224/914*

BLADDER INSTRUMENT .................. 606/170

BLADE SEE ASSOCIATED MACHINE
  ELECTRIC SWITCH ...................20/271+
  HAND MANIPULATED CUTLERY ..........30
     HOLDER FOR BLADES ..............30/329+
  MAKING ............................76/104.1+
     SAWS ...........................76/25.1+
  METALWORKING CUTTER ...............407
  PROPELLER .........................416
     ADJUSTABLE .....................416/147+
  STONEWORKING SAW
     RECIPROCATING ..................125/18
     ROTARY .........................125/15


BLANCHING
  FRUITS AND VEGETABLES .............426/506+
     GRAIN APPARATUS ................99/600+
     GRAIN PROCESS ..................426/506+
     NUTS ...........................99/623+

BLANKETS
  ANIMAL ............................D30/145
  BED ...............................5/482+
  ELECTRICALLY HEATED ...............219/212
  HORSE .............................54/79.1
     DESIGN .........................D30/145
  HOUSEHOLD LINEN ...................D06/603
  NUCLEAR FERTILE MATERIAL ..........376/172
  PRINTERS ..........................428/909*
  RETAINING DEVICES .................24/72.5

BLANKING
  CATHODE RAY TUBE CIRCUIT ..........315/384
  METAL WORKPIECE FOR DEFORMATION ...72/324+


BLANKS (SEE STOCK) .................. 428/542.8
  CARTRIDGES ........................102/530+
  CIGAR .............................131/364
  HORSESHOE .........................59/62+
  METAL .............................428/577+
     DOUBLE BLANKS ..................29/DIG.2
     HOLDER FOR DURING DEFORMATION ..72/293+
  METALLIC RECEPTACLE ...............220/62
  NUT ...............................411/427
  PAPER ENVELOPE ....................229/75
     DESIGN .........................D19/3+
  PHONOGRAPH RECORD .................428/64+
  PRINTED ...........................283
  PROCESSES AND
     CHAIN ..........................59/35.1
     GARMENT COLLAR .................2/143
     PRINTING MEMBERS ...............101/401.1
     SPROCKET CHAIN .................59/8
     STAPLE .........................59/77
     TOOLS AND IMPLEMENTS ...........76/101.1+
     WELDLESS CHAIN .................59/12
  SHELF BRACKET OF SINGLE BLANK SHEET248/248
     MATERIAL .......................248/248
  SHOE SOLE PREPARED FOR ATTACHMENT .36/22.R
     WITH UPPER STRUCTURE ...........36/12+
  SHOE UPPER ........................36/47+
  SPIKE .............................470/132+

BLAST
  ABRADING BY SAND ..................51/410+
  BOILER CLEANING BY SAND ...........122/395
  CLEANING ..........................15/300.1+
     BEATER AND OR BRUSH COMBINED ...15/363+
     SUCTION COMBINED ...............15/345+
  DECORTICATING FIBROUS MATERIAL ....19/9
  FILTER CLEANING ...................210/407+
  FLUID FLOW DISPENSING .............222/630+
  FORGES ............................110/195
  FURNACE (SEE SHAFT, FURNACE) ......266/197+
  FURNACE REDUCTION OF IRON
     COMPOUNDS ......................75/458+
  GAS AGITATION .....................222/195
  INSECT POWDER DUSTERS .............43/132.1+
  METAL TREATING ....................266
  PIPES FOR LOCOMOTIVES .............60/685+
     JET PUMP TYPE ..................417/155+
  PNEUMATIC CONVEYORS ...............406
  TRACK SANDERS .....................291/3+


BLASTING ............................ 102/301+
  CAPS ..............................102/275.12
  CARTRIDGES ........................102/314+
  WELL ..............................102/301+

BLAUGAS ............................. 48/211

BLEACHERS ........................... 52/8+
  DESIGN ............................361/2+

BLEACHING ........................... 8/101+
  APPARATUS TEXTILES ................68
  COMPOSITIONS
     CAKE, TABLET OR POWDER FORM ....8/524+
     DETERGENTS COMBINED ............252/94+
     OXIDATIVE ......................252/186.1+
     REDUCTIVE ......................252/188.1+
  DYEING AND ........................8/931*
  ELECTROLYTIC ......................204/133
  FOODS AND BEVERAGES ...............426/253+
     APPARATUS ......................99/467+
     FLOUR ..........................426/253+
  PAPER STOCK .......................162/1+
  PHOTOGRAPHIC ......................430/430+
  RESIN BLEACH ......................8/DIG.6
  SILICONES .........................8/DIG.1
  SUGAR .............................127/64
  TEXTILE BLEACHING .................8/101+
  TOBACCO ...........................131/290
     ELECTRICAL OR RADIANT ENERGY ...131/299
  VINYL SULFONES & PRECURSORS THEREOF8/DIG.2
  WASTE PAPER .......................162/4+

BLEEDER RESISTOR .................... 338

BLENDERS
  HOUSEHOLD MIXER-BLENDERS ..........D07/378

BLENDING
  DISPENSING COMBINED ...............222/145
  MINERAL OIL .......................208
  MIXING ............................366
  TOBACCO LEAF ......................131/327
     CIGAR MAKING COMBINED ..........131/39
     FEEDING COMBINED ...............131/108+

BLENDS OF POLYMERS (SEE SYNTHETIC RESIN OR NATURAL RUBBER)
  CELLULAR ..........................521/134+

BLIND LANDING SYSTEMS     
  AIRCRAFT CONTROL ..................244/75.R+
  GEOMETRICAL INSTRUMENT ............33/227
  LIGHT .............................362/145
     FLASHING BEACON ................340/947+
  RADIO .............................343
     BEACON .........................342/385+
     BEACON FIXED COURSE OR BEARING .342/407+
       LOCALIZER ....................342/413
     DIRECTION FINDING RECEIVER .....342/417+
     GLIDE SLOPE ....................342/410+


BLIND OR BLINDERS SEE SHUTTERS,
 BLIND OR SIGHTLESS
  ADJUSTERS .........................160/176.1
  ANIMAL WORN .......................119/836
     DESIGN .........................D30/144+
     HARNESS BRIDLE ATTACHED ........54/10+
  CORD LATCH FOR VENETIAN BLIND .....D08/394
  EYE SHIELD TYPE ...................2/15
     DESIGN .........................D29/18
  FASTENERS .........................292
  FLYING (SEE FLYING)    
  HUNTER CONCEALING .................43/1
  RADAR .............................342/24+
     USING LIGHT RAY ................340/555+
     USING SOUND OR SUPERSONIC ......367/87+
  ROLLERS ...........................160/284
  SLAT HOLDERS ......................292/345
  STITCH SEWING .....................112/267.1+
     MACHINES .......................112/176+
     WORK GUIDE FOR .................112/140
  TILTER UNIT FOR VENETIAN BLIND ....D08/358
  WINDOW ............................160

BLIND OR SIGHTLESS, AIDS FOR
  BRAILLE TYPEWRITER ................40/122+
  CANES .............................135/65+
  CONVERTING INFORMATION TO SOUND ...434/116
  PHOTOCELL SCANNERS FOR READING
     MACHINES .......................250/555
  RADAR TYPE ........................342/24+
  TACTILE ...........................434/113+
  TV INCLUDING AID FOR BLIND ........358/94
  USING SOUND .......................367/87+
  WRITING GUIDES ....................434/117

BLISTER PACKAGE ..................... 206/461+


BLOCK
  BUTCHER ...........................269/289.R+
  CONSTRUCTION (SEE BLOCKS; TOY;
     PANEL) .........................52
     BREAK AWAY SECTION .............52/98+
     COLUMN ATTACHED ................52/474+
     GLASS ..........................52/306+
     KEYS ON ANGLED SURFACES ........52/589+
     KEYS ON SINGLE SURFACE .........52/593
     LAYERED MASONRY ................52/612
     MASONRY ........................52/596+
     MORTAR BONDED MASONRY ..........52/415+
     PARALLEL COURSE MASONRY ........52/561+
     PAVING .........................404/34+
     REINFORCED BLOCK ...............52/600+
     SETTABLE MATERIAL ON MASONRY ...52/444
     STATIC MOLDS ...................249/144+
     THROUGH PASSAGE ................52/606+
     TIED ...........................52/562
     WITH DRAIN .....................269/13
     WITH PASSAGE ...................52/606+
  ELECTRICAL CONNECTOR   
     CEILING ........................439/450
     CEILING QUICK DETACHABLE .......439/450
  FOR FLOOR,WALL,ROOF ...............D25/138+
  FUSE RECEPTACLE ...................439/830+
  HAT FORMING .......................223/24+
     DESIGN .........................D15/135+
  KEEL AND BILGE ....................405/7
  LOG DECK ..........................83/708
     LOG TURNERS COMBINED ...........83/710+
  MOLDING ...........................425
     HOLDER .........................206/39
  PLANES ............................30/478+
  PULLEY ............................254/401+
     BLOCK AND TACKLE, DESIGN .......D08/360
  RAILWAY RAIL SEATS     
     SPIKING BLOCKS .................238/286
     WOOD CUSHION BLOCKS ............238/285
  SANDING ...........................51/204+
     FLEXIBLE .......................51/358+
  SECTIONAL PIPE ....................138/100+
  TACKLE PULLEY .....................254/401+
  TOY AND EDUCATIONAL    
     BUILDING .......................446/85+
     DESIGN .........................D21/108
     EDUCATIONAL DISPLAY ............434/403
     TEACHING ARITHMETIC ............434/208
     TEACHING MUSIC .................84/476
     TEACHING SPELLING ..............434/167+

BLOCK COPOLYMER (SEE SYNTHETIC RESIN OR NATURAL 

BLOCKING LAYER SEE BARRIER LAYER