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:


AMPLITUDE MODULATION ................ 332/149+
  ANALOG CARRIER WAVE COMMUNICATIONS 455
  PEAK COMPRESSIONAL WAVE,
     GEOPHYSICAL ....................367/29
  PULSE CARRIER WAVE COMMUNICATIONS .375/24
  PULSE OR DIGITAL COMMUNICATION ....375

AMPOULE SEE CONTAINER
  EXHAUST ...........................141
  FILLING ...........................141/31
  MEDICAMENT CONTAINING .............424/451+
  OPENER ............................51/204
  STRUCTURE .........................215/32+
  SURGICAL ..........................604/200+
     HYPODERMIC .....................604/415

AMPROTROPINE, IN DRUG ............... 514/534


AMUSEMENT DEVICES ................... 472
  DESIGN ............................D21/240+
  ELEVATOR ..........................472/131
     ROUNDABOUT .....................472/2
  EXERCISING DEVICES ................482
  GAMES .............................273
  HOUSES ............................472/136
     ILLUSIONARY ....................472/74
  MECHANICAL GUNS & PROJECTORS ......124
  MIRRORS AND REFLECTORS ............359/838+
  RAILWAY ...........................104/53+
     CAR IN WHEEL ...................104/77
  ROUNDABOUT STATIONARY .............472/1+
  ROUNDABOUT TRANSPORTED ............472/3
  TOYS SEE TOYS .....................446
  TRIP ILLUSIONS ....................472/59+
  WATER GUNS ........................222/78+

AMYL
  ALCOHOL ...........................568/840
  CHLORIDE ..........................570/181
  MERCAPTAN .........................568/61+
  NITRATE ...........................558/480

AMYLACEOUS MATERIAL ................. 127
  FERMENTATIVE ANALYSIS OR TESTING ..435/4+

ANABASINE ........................... 546/193

ANAEROBIC
  CULTIVATION .......................435/801*
  CURING ADHESIVE ...................156/322
  FERMENTATION ......................435
     FERTILIZER .....................71/10
  SEWAGE TREATMENT ..................210/601+
     AND AEROBIC ....................210/605

ANAGLYPHS ........................... 359/464+

ANALGESIC,AUDIO ..................... 60/26+

ANALOG LOGIC ........................ 395/1
  EXPERT SYSTEM .....................395/61

ANALOGUE COMPUTER
  ELECTROLYTIC TANK FOR DETERMINING
     EQUIPOTENTIAL LINES ............235/61.R

ANALYSIS OF COMPLEX WAVES ........... 324/76.12

ANALYTICAL AND ANALYTICAL CONTROL
  APPARATUS
     CHEMICAL .......................422/50+
     ELECTROLYTIC ...................204/400+
  COMPOSITIONS ......................330/299
  ELECTRICAL ........................330/299
  ELECTRON MICROSCOPE ...............330/299
  HUMAN DIAGNOSTICS .................128/630+
  MASS SPECTROMETRY .................250/281+
  METHOD
     CHEMICAL .......................436/43
     FERMENTATIVE ...................435/3
  USING INVISIBLE LIGHT .............250/336.1
  USING X RAYS ......................378

ANALYZERS (SEE ANALYTICAL AND SENSING)
  ELECTRIC WAVES AND HARMONICS ......324/76.12+
     CATHODE RAY OSCILLOSCOPES ......324/121.R
     MIRROR GALVANOMETER
       OSCILLOSCOPES ................324/97
     OSCILLOGRAPHS ..................346/108+
     SOUND ..........................73/584+
     SPEECH .........................381/41+
  REFRIGERATOR, SORBENT TYPE ........62/495+
  SOUND .............................181
     FREQUENCY COMPONENTS ...........324/76.12+
     WAVE SEPARATION ................333/167+

ANALYZING (SEE SENSING)

ANASTIGMAT LENSES ................... 359/642+

ANATASE ............................. 423/610

ANATOMICAL GAUGES ................... 33/511+

ANATOMY, TEACHING ................... 434/267+


ANCHOR AND ANCHORAGE
  ANIMAL POWERED APPARATUS ..........185/25
  BOLT
     CONCRETE SET TYPE ..............52/698+
  BRIDGES
     ARCH ...........................14/26
     SUSPENSION .....................14/21
  BUILDING COMPONENT ................52/698+
  CABLE RAIL ........................104/117
  CYCLE LOCKED TO ...................70/234
  DECOY .............................43/2+
  DESIGN ............................D12/215
  DREDGES
     BANK SPUD ANCHOR ...............37/345
     BOTTOM SPUD ANCHOR .............37/346
  EARTH CONTROL DEVICE COMBINED .....405/259.1+
  EXPANSIBLE WELL TYPE ..............166/206+
     EARTH BORING COMBINED ..........175/230
  FISHING TROLLEY ...................43/27.2
  FREIGHT ON FREIGHT CARRIER ........410/101+
  LAND ..............................52/155+
  LAND VEHICLE ANCHORS ..............188/7
  MARINE STRUCTURE TO BED ...........405/224+
  MARINE TYPE MINES .................102/411+
  MASONRY ...........................52/698+
  PILE ..............................405/244
     CAST IN SITU ENLARGEMENT .......405/237+
  POLE BASE .........................52/292+
  RAILWAY SURFACE TRACK
     BOLT ...........................238/377
     CLAMP TYPE RAIL ANCHORS ........238/343+
     CONCRETE FOR RAIL SEAT .........238/265
     RAIL ANCHORS ...................238/315+
     SCREW PEDESTALS ................238/120
     TIE ANCHORS ....................238/106
     TIE PLATE ANCHORS ..............238/297+
  SHIP ANCHORS ......................114/294+
  STOVEPIPE .........................126/318
  STRAND ENDS .......................24/122.6
     HOIST ROPE .....................212/95
     LINE DRIVEN PLANTERS ...........111/49
     SUSPENSION BRIDGES .............14/21
  TANK-CAR BODY .....................105/362
  WALL TILE

ANDIRONS ............................ 126/298
  AND ROBOT .........................901/1*
  ANDROID ...........................901/1*
  DESIGN ............................D23/407


ANDROSTENES ......................... 552/633+

ANDROSTERONE ........................ 552/641

ANEMOMETER .......................... 73/861.85
  DIRECTION DETERMINATION COMBINED ..73/170.1+

ANEROBIC SEALANT RESIN COMPOSITIONS . 523/176

ANEROID BAROMETERS .................. 73/386+

ANESTHETIC
  ANESTHESIA GAS SCAVENGING SYSTEM ..128/910*
  COMPOSITIONS ......................424
  EXPLOSIVE DEVICES CONTAINING ......102/512
  FEEDER ............................128/203.12

ANETHOL ............................. 568/658

ANGLE IRON .......................... 52/720

ANGLE MEASUREMENT
  PHOTOELECTRIC .....................356/138+
     OF ROTATING SHAFT ..............250/231.13+
     VARIABLE ANGLE, WITH LIGHT
       CONDUCTOR ....................250/227.3


ANGLE POLYSECTION MEASURE ........... 33/1.AP
  MEASURING INSTRUMENT ..............D10/65+

ANGLING (SEE FISHING; TRAPPING)

ANHYDRITE ANHYDROUS GYPSUM .......... 106/775+
  CALCINING PROCESSES ...............106/765
  PLASTERS ..........................106/772+

ANILINE ............................. 564/305+
  FORMALDIHIDE POLYMERS  SEE SYNTHETIC RESIN OR NATURAL RUBBER


ANIMAL
  ARTIFICIAL ........................428/16
     HAVING LIGHTS ..................362/124
  ATTACK RESISTANT STOCK ............428/907*
  BEDS ..............................D30/118
  BEE CULTURE .......................449
  BLOCKING REPELLING OR CHASING .....49/58+
  BUTCHERING ........................452
     DEPILATING .....................452/71
  CALLS AND CALLERS .................446/397
     WITH MOUTHPIECE ................446/207+
  CANOPY FRAME SUPPORTED BY .........135/90
  CARE AND HANDLING .................D30
  CATCHING AND HOLDING DEVICE .......119/801+
  CONFINING AND HOUSING DEVICES .....119/15+
     CAGES ..........................119/17+
     PAPERBOARD SHIPPING BOX ........229/120.1+
  DIPS AND SPRAYS ...................424
  DRAFT APPLIANCE ...................278
     MONORAIL VEHICLE ...............105/143
  DROPPINGS HANDLER .................294/1.3+
  EXTRACTS
     MEDICINE CONTAINING ............424/520+
  FARRIERY ..........................168
  FEED DEVICES ......................119/51.1+
     DESIGN .........................D30/121+
  FEEDING METHOD
     CRUSTACEAN .....................119/212
     FISH ...........................119/230
     MOLLUSK ........................119/242
  FERTILIZER ........................71/15+
     BONES ..........................71/19+
  FISHING, TRAPPING, & VERMIN
     DESTROYING .....................43
  FOOD ..............................426/635+
     APPARATUS ......................99
     DESIGN .........................D01
     MIXER ..........................366/603*
     PROTEIN ........................426/635+
  GROOMING ..........................D30/158+
  HARNESS ...........................54
  HUSBANDRY .........................119
     DESIGN .........................D30
  MARKER ............................40/300+
     DESIGN .........................D30/155
  MEDICINES FOR TREATING ............424
  POISONS ...........................424
     WITH FOOD BAIT .................424/410
  POKES .............................119/758+
  PRESERVING OR MOUNTING INCLUDING
     TEACHING TAXIDERMY .............434/296+
  RELEASING APPARATUS ...............119/15.1+
     AS TARGET ......................119/15.6
  SADDLERY ..........................D30/134+
  SHEARS ............................30/194+
  SHELTER OR PEN ....................D30/108+
  SHIPPING CRATES ...................D30/109+
  STOP IN BUILDING ..................52/101
  STOP IN SEWAGE SYSTEM .............210/131
  TAMING OR TRAINING DEVICES ........119/712+
  TISSUE TREATMENT ..................8/94.1R+
  TOYS ..............................446/268+
  TRAPS .............................43/58+
     DESIGN .........................D22/119+
  WATERING DEVICES ..................119/72+
     DESIGN .........................D30/121+
  WHIPS & WHIP APPARATUS ............231

ANIMAL CELL CULTURE ................. 435/240.2+

ANIMAL CELL GROWTH MEDIA ............ 435/240.3+

ANIMAL CELL PER SE .................. 435/240.2+

ANIMATED CARTOONS SEE MOTION PICTURE

ANIMATION ........................... 395/152

ANISIDINE ........................... 564/443

ANKLE SUPPORTS ...................... 602/65

ANKLETS ............................. 2/239+


ANNEALING
  BOXES .............................266/262+
  CASTING PLUS ANNEALING IN MOLD ....164/122+
  CONTAINERS FOR MATERIAL HEATED ....432/254.1+
  GLASS APPARATUS ...................65/348+
     CUTTER ASSOCIATED ..............65/176
  GLASS MAKING AND ..................65
  GLASS PROCESS .....................65/117+
  HEATING APPARATUS .................432/120+
  METAL .............................148
  METAL CASTING COMBINED ............148/538+
  METAL WORKING COMBINED ............148/648+
  METALLURGICAL APPARATUS ...........266/249+
  MISC  CHEMICAL MANUFACTURE ........156/DIG.73

ANNULAR ARTICLE,CONTAINER FOR ....... 206/303

ANNUNCIATOR AND SYSTEMS ............. 369
  DROPS .............................340/815.29
  ELECTRICAL ........................340/815.1+
     SYSTEMS ........................340/286.11+
     TELEPHONE SWITCHBOARD ..........379/315+
  MECHANICAL ........................116/200+
  TIMER ELECTRIC ....................340/309.15+
  TRAIN POSITION ....................246/124

ANODE
  ELECTROLYTIC ......................204/280+
     BASKET TYPE CELL ...............204/259
     SUPPORT ........................204/297.R
     SUPPORT COMBINED ...............204/286+
  GAS AND VAPOR LAMP ................313/326+
  PLURAL CONSUMABLE ELECTRODE EG ARC SPACE
  DISCHARGE DEVICES ELECTRONIC TUBES 313/326+

ANODIC OXIDATION .................... 205/316+
  MULTIPLE LAYERS ...................205/171+

ANSWER BACK
  ANNUNCIATOR SYSTEM ................340/313+
  TELEGRAPH SYSTEM ..................178/4.1B+

ANTAGONISTS ......................... 504/103+

ANTENNA ............................. D14/230+
  ACTIVE ANTENNA AS REFLECTOR .......343/832
  AIRCRAFT, WITH ....................343/705
  ALARM COMBINED ....................343/894
     MOVING MEANS FOR SCANNING ......343/760
  ARRAY .............................343/700.R+
  AUTOMOBILE, WITH ..................343/711+
  BALANCED V-WAVE ...................343/735
  BICONICAL HORN ....................343/773
  BODY ATTACHED OR CARRIED ..........343/718
  BRACKET SUPPORTED .................343/892
  CAGE ..............................343/896
  CLOVER LEAF TYPE ..................343/741+
  COATED ............................343/873
  CONE ..............................343/829+
  CONNECTORS FOR ELECTRICAL .........439
  COUNTERPOISE, WITH ................343/846+
  COUPLED TO PLURAL LEAD INS ........343/858
  COUPLING FOR ELECTRICAL ...........333/24.R+
     PLURAL CHANNEL .................333/1+
  COUPLING, WITH ....................343/850+
  DESIGN ............................D14/230+
  DIELECTRIC LENS ...................343/911.R
  DIELECTRIC TYPE ...................343/785
  DIPOLE ............................343/793+
     FOLDED .........................343/803+
  DIRECTOR ..........................343/912+
  DOUBLET BALANCED ..................343/793+
  DROOPING GROUND PLANE .............343/829+
  DUPLEX SYSTEM, IN .................370/24+
  ELECTROMAGNETIC WAVE REFRACTOR ....343/753+
  EMBEDDED ..........................343/873
  FILTER IN AN ACTIVE ANTENNA .......343/722
  FILTER IN COUPLING, WITH ..........343/850+
  FISHBONE ..........................343/811
  FOUNDRY ...........................164/374+
  GROUND PLANE ......................343/829+
  GROUNDING STRUCTURE COMBINED ......343/846+
  HELICAL ...........................343/895
  HIGH FREQUENCY LOOP ...............343/741+
  HORN ..............................343/786
  HOUSING, WITH .....................343/872+
  ICE CLEARER OR PREVENTER, WITH ....343/704
  IMPEDANCE MATCHING,WITH ...........343/860+
     PLURAL PATH ....................343/852
  INDICATOR COMBINED ................343/894
     MOVING MEANS FOR SCANNING ......343/760
  INSULATORS FOR ....................174/137.R+
     BUSHING TYPE ...................174/152.A+
  INVERTED V-WAVE ...................343/736
  KNOCKDOWN .........................343/880
  LENS ..............................343/909
     LENS COMBINED ..................343/753+
  LIGHTNING PROTECTOR COMBINED ......343/904
  LIGHTNING PROTECTORS FOR
     MISCELLANEOUS ..................361/117+
     SPARK GAP TYPE .................313/325
     THERMAL CURRENT ................337/28+
  LIQUID COLUMN TYPE ................343/700.R
  LOADING ...........................343/749+
  LOOP ..............................343/866+
     COLLAPSIBLE ....................343/871
     HIGH FREQUENCY .................343/741+
     ROTATABLE ......................343/869
  MAKING ............................29/600
  MAST FOR ..........................52/651.7+
     GUY WIRE .......................52/148
     PIVOTED OR EXTENSIBLE ..........52/111+
  MAST TYPE .........................343/874
  MESH TYPE .........................343/897
  ORIENTING .........................343/757+
  PILLBOX ...........................343/780
  PLANAR LINEAR ARRAY ...............343/824
  PLURAL ............................343/893
  POLARIZATION
     CONVERTER COMBINED .............343/756
     FILTER COMBINED ................343/756
  POLARIZER .........................343/909
  POTTED ............................343/873
  RABBIT-EARS .......................343/805
  RADIO
     CABINET COMBINED ...............343/702
     RECEIVER, IN ...................455/269+
     TRANSMITTER, IN ................455/129
  REEL TYPE .........................343/877
  REFLECTOR .........................343/912+
     COLLAPSIBLE ....................343/915
     WITH REFLECTOR .................343/833+
  RESONANT V-TYPE ...................343/809
  RETRACTIBLE INTO SUPPORT ..........343/899
  RHOMBIC ...........................343/733+
  ROD TYPE ..........................343/900+
     DECORATIVE ELEMENT .............52/301
     EXTENSIBLE .....................52/632
     REEL TYPE EXTENDER .............242/54.A
     SUPPORT FOR ....................248/511+
     TELESCOPING ....................343/901+
     VEHICLE ATTACHED ...............52/110
  ROTATOR ...........................D14/237
  SCANNING ..........................343/757+
  SHIELD, WITH ......................343/841+
  SIGNAL MEASURING STRUCTURE, WITH ..343/703
  SKIRT .............................343/829+
  SLEEVE TYPE .......................343/790+
  SLOT TYPE .........................343/767+
  SPACE DISCHARGE DEVICE, WITH ......315/34
  SPACE DISCHARGE DEVICE, WITH ......343/701
  SPINIFEROUS .......................343/899
  SPIRAL ............................343/895
     SCANNING .......................343/759
  STEERING ..........................342/368+
     WHEEL ..........................343/829+
  STUB ..............................343/831
  SUBMERGED .........................343/719
  SUPPORT FOR .......................248
  SUPPORT FOR .......................211
  SUPPORT, WITH .....................343/878+
     ELECTRIC STRESS DISTRIBUTING ...343/885
     STATIC DISCHARGE ...............343/885
     STREAMLINED SUPPORT ............343/887
     SUPPORT ROTATABLE ..............343/882
  SWEEPING ..........................343/757+
  SWITCH FOR ........................20
  SWITCH,WITH .......................343/904
  SWITCHING BETWEEN ANTENNA AND LINE 343/876
  TELESCOPING .......................343/901+
  TOWER TYPE ........................343/874+
  TRANSCEIVER, IN ...................455/82
  TRANSMISSION LINE FOR .............174/68.1+
     ELECTRICALLY LONG ..............333/236+
  TRANSMISSION LINE WITH ............343/905
  TRAVELING WAVE ....................343/731+
  TUNING ............................343/745+
  TURNSTILE .........................343/797+
  UNDERGROUND .......................343/719
  UNDERWATER TYPE ...................343/719
  VEHICLE COMBINED ..................343/711+
  WATER-BORNE .......................343/709+
  WAVE ..............................343/731+
     GUIDE TYPE .....................343/772+
  WHIP ..............................343/900+
  WOVEN TYPE ........................343/897

ANTHANTHRONES ....................... 552/284

ANTHRACENE (SEE AROMATIC HYDROCARBON) 585/400+
  OXIDATION OF ......................552/208
  PURIFICATION OF ...................585/800

ANTHRACYCLINONES .................... 552/201

ANTHRANILIC ACID .................... 562/458

ANTHRANOLS .......................... 552/271+

ANTHRAPYRIDONES ..................... 546/76

ANTHRAPYRIMIDINES ................... 544/248

ANTHRAQUINODIMETHANE ................ 552/210

ANTHRAQUINONE PURIFICATION .......... 552/208

ANTHRAQUINONES
  ACRIDINE NUCLEUS CONTAINING .......546/102+
  ANTHRAQUINONEBENZACRIDONES ........546/58
  AZO COMPOUND CTG ..................534/654+
  CARBAZOLE NUCLEUS CONTAINING ......548/416+
  DYE COMPOSITIONS CONTAINING .......8/675+
  IMIDAZOLE NUCLEUS CONTAINING ......548/300.4+
  PIPERAZINES CONTAINING ............544/380+
  PYRAZOLE NUCLEUS CONTAINING .......548/356.5+
  PYRIDINE NUCLEUS CONTAINING .......546
  PYRIMIDINES CONTAINING ............544/294
  TRIAZINES CONTAINING ..............544/187+

ANTHRIMIDES ......................... 552/214

ANTHRONES (SEE ANTHRAQUINONES) ...... 552/271+

ANTIABRASION CABLE DEVICE ........... 174/136

ANTIAIRCRAFT SEE GUN

ANTIBIOTIC COMPOSITIONS ............. 424

ANTIBODIES .......................... 530/387.1+
  MONOCLONAL ........................530/387.2+

ANTICAKING AGENTS ................... 252/381+

ANTICANNIBALISM DEVICES FOR
 POULTRY ............................119/713+

ANTICATHODE ......................... 378/143

ANTICORROSION
  COMPOSITIONS ......................252/387+
     COATING OR PLASTIC .............106/14.5+
     DETERGENTS CONTAINING ..........252/146+
     HEAT EXCHANGE FLUID CONTAINING .252/68
     WELL TREATING ..................252/8.555
  MAGNETIC FIELD APPARATUS ..........422/186.2
  METAL PROTECTION
     REACTIVE COATING ...............148/240+
     WITHIN NUCLEAR REACTOR .........376/305
  MINERAL OIL CONVERSION COMBINED ...208/47
  SILVERWARE TRAY INCORPORATED ......206/553
  VAPOR TREATING APPARATUS ..........312/31+

ANTICREEP
  RIM AND WHEEL .....................152/384
  SPRING WHEEL DRIVE ................152/66
     WHEEL DRIVE ....................152/68
  TIRE AND TUBE .....................152/500

ANTIDOTES ........................... 504/103+


ANTIELECTROLYSIS
  ELECTRICAL DISTRIBUTION SYSTEM ....307/95
  OBJECT PROTECTION
     APPARATUS ......................204/196+
     PROCESSES ......................204/147+

ANTIEXPLOSION AGENTS ................ 44/300+
  EXPLOSIVE COMBINED ................149

ANTIFADING RADIO RECEIVER ........... 455/52.1+

ANTIFOAMING
  AGENTS ............................252/358
  DEVICES FOR BOILERS ...............122/459

ANTIFOULING PLASTIC COMPOSITIONS .... 106/15.5+

ANTIFREEZE
  AIRCRAFT DEICING ..................244/134.R
  COMPOSITIONS ......................252/71+
     COATING ........................106/13
  HEATING SYSTEM PROTECTORS .........237/80
  TESTER ............................73/32.R+
  TREATMENT OF SOLID FUEL ...........44/601

ANTIFREEZE AGENT SUPPLY ............. 138/34+

ANTIFRICTION
  BEARING ...........................384/445+
     COMPOSITIONS ...................252/12+
     FLUID BEARING COMBINED .........384/101+
     LINEAR .........................384/7+
     PLAIN BEARING COMBINED .........384/126+
  CLOSURE GUIDE .....................49/425+
  COMPOSITIONS ......................252/9+
  KEEPERS ...........................292/340+
  LOCKS .............................70/464

ANTIGEN ............................. 424/88+

ANTIGEN, CHEMICAL MODIFICATION OF
 PROTEIN ............................530/403+

ANTIGEN-ANTIBODY TESTING ............ 436/500+
  IN VITRO ..........................436/500+
     ENZYME LABELED .................435/4+
  IN VIVO ...........................424

ANTIGLARE
  LIGHT PROJECTORS ..................362/351+
  MIRRORS AND REFLECTORS ............359/603+
  WINDOWS ...........................359/609
  WINDSHIELDS .......................296/96.19

ANTIHALATION LAYER .................. 430/510+

ANTIHEMORRHAGIC COMPOSITION ......... 424


ANTIINDUCTION
  CATHODE RAY TUBE CIRCUITS .........315/8
  INDUCTOR DEVICES WITH SHIELDS .....336/84.R+
  RESISTORS .........................338/61+
  SHIELDING TUBES AND SPARK PLUGS ...315/85
  TELEGRAPH INTERFERENCE BALANCING ..178/69.B
  TELEPHONE CIRCUITRY ...............379/416+
  TRANSMISSION LINE .................174/32+

ANTIINGESTIBLE ...................... 252/365+

ANTIJIMMY LOCKS ..................... 70/418

ANTIKINK DEVICES
  APPLIANCE CORDS
     EXTENSIBLE CORDS ...............174/69
  SPRINGS ...........................267/74

ANTIKNOCK
  CYCLOMATIC COMPOUNDS ..............556/1+
  ENGINE ACCESSORIES ................123/198.A
  EXHAUST GAS TREATMENT .............422/168+
  FUEL COMBINED WITH ANTIKNOCK AGENT 44/300+
     GASEOUS COMPOSITIONS ...........252/373
  MEASURING KNOCK ...................73/35
  TETRAALKYL LEAD ...................556/95
     WITH PRESERVATIVE OR STABILIZER 556/3+

ANTILEAK JOINT ...................... 105/424

ANTI-LOCK BRAKE SYSTEM .............. 303
  ELECTRONIC CONTROL ................303/93+
  VALVE CONTROL .....................303/113.1+


ANTIMAGNETIC TIMEPIECE .............. 368/293

ANTIMICROBIAL ACTIVITY
  FERMENTATIVE ANALYSIS OR TESTING ..435/32

ANTIMONY
  ALLOYS ............................420/576
  ANTIMONATES .......................423/592+
  CARBOCYCLIC OR ACYCLIC COMPOUNDS   556/64+
     CONTAINING .....................556/64+
  HALIDES ...........................423/462+
  MISC  CHEMICAL MANUFACTURE ........156/DIG.94
  OXIDES ............................568/477
  PIGMENTS FILLERS OR AGGREGATES ....106/455
  PYROMETALLURGY ....................75/703+
  SULPHIDES INORGANIC ...............423/511


ANTINOISE
  BED ...............................5/309
  CLOSURE BUFFER ....................16/82+
  CRANKS AND WRIST PINS .............74/604
  EAR SHIELDS .......................128/864+
  FLYWHEELS AND ROTORS ..............74/574
  GEARS .............................74/443
  LAND VEHICLE
     ANIMAL DRAFT GEAR ..............278/61+
     AXLE CONNECTION ................280/138
     TONGUE .........................280/108
  LEVERS AND LINKAGE ................74/490
  LOCK MUFFLERS .....................70/463
  MACHINERY SUPPORT
     BASES ..........................248/678+
     BRACKET ........................248/674+
     SUSPENSION .....................248/637+
       RESILIENT ....................248/610+
  MOTOR SUPPORT VEHICLE .............248/560+
  MUFFLERS ..........................181/212+
  PAWL AND RACHET ...................74/576
  RAILWAY
     ROLLING STOCK ..................105/452
     TRACK ..........................238/382
     WHEELS .........................295/7
  REACTION MOTOR NOZZLE .............239/265.13
  ROTARY MOTORS OR PUMP .............415/119
  SUPPORTS ..........................248/562+
  TYPEWRITER
     MUFFLER ........................40/689+
     PLATEN .........................40/661+

ANTIORONZE AGENT OR PROCESS ......... 430/929*

ANTIOXIDANT
  COMPOSITIONS ......................252/397+
  EDIBLE OILS AND FATS ..............426/601+
  FATS,FATTY OILS,FATTY ACIDS,       554/2+
     ESTER TYPE WAXES ...............554/2+
  POLYMERS TREATED (SEE CLASS 523, 524)
  SOLID POLYMERS CONTAINING  SEE SYNTHETIC RESIN COMPOSITIONS

ANTIPANIC DOOR BOLTS ................ 292/92+

ANTIPECKING POULTRY RESTRAINT ....... 119/713+

ANTIPHONE EAR SOUND STOPPERS ........ 128/864+

ANTIPICK LOCKS ...................... 70/419+

ANTIPICKING POULTRY RESTRAINT ....... 119/713+

ANTIPYRINE .......................... 548/370.7+

ANTIRACHITIC VITAMIN
  D COMPOUND ........................552/653
  FOODS AND PROCESSES ...............426
  MEDICINES .........................514/167+

ANTIRATTLE .......................... 16/DIG.6
  LOCK ..............................70/463
     KEEPER .........................292/341.12+
  WINDOW ............................292/76
     CAR ............................49/428+

ANTIREFLECTION FILMS ................ 359/580+

ANTIRICOCHET PROJECTILES ............ 102/398

ANTIROOSTING POULTRY RESTRAINT ...... 119/903*

ANTISCORBUTIC VITAMIN
  C COMPOUND ........................549/315
  FOODS AND PROCESSES ...............426/72+
  MEDICINES .........................514/474

ANTISEPTICS (SEE DISINFECTION;
 PRESERVING) ........................422
  COMPOSITIONS ......................424
  DETERGENTS COMBINED ...............252/106+
  MEDICATORS ........................604/19+
  WATER SOFTENER COMBINED ...........252/175+

ANTISIDE DRAFT DEVICE (SEE EQUALIZER)
  ANIMAL DRAFT ......................278/3+
  HARVESTERS ........................56/321

ANTISIPHON FOR FLUID HANDLING SYSTEMS 137/215+

ANTISLIP OR ANTISKID
  COMPOSITIONS,COATING OR PLASTIC ...106/36
  HORSESHOE CALKS ...................168/29+
  LADDER TERMINALS AND FEET .........182/107+
  OVERSHOES .........................36/7.6+
  PAVEMENTS .........................404/19+
     BLOCK SURFACE ..................404/19+
  SHOE
     FROM FOOT ......................36/58.5
     TREAD ..........................36/59.C
  SUPPORTS
     ILLUMINATION ...................362/389
  TIRES .............................152/208+
     ARMORED ........................152/167+
  TRACK SANDERS .....................291
  TRACTION MATS .....................238/14

ANTISMOKING PRODUCT OR DEVICE ....... 131/270

ANTISMUT
  COMPOSITIONS,COATING REPELLENT ....106/2
  PRINTING COMBINED .................101/416.1+
  SLIP SHEET
     APPARATUS ......................34/94
     PROCESSES ......................34/6

ANTISNORING
  BODY RESTRAINTS ...................128/871
  CHIN SUPPORTERS ...................602/902*
  MOUTH RESTRAINTS ..................128/859+

ANTISPASMODICS ...................... 424

ANTISPLASH
  VEHICLE MUD GUARDS ................280/847+

ANTISTATIC
  ELECTRICALLY CONDUCTIVE COATING
     COMPOSITIONS ...................252/500+
  POLYMERS TREATED (SEE CLASS 523, 524
  PROCESS FOR SYNTHETIC FIBERS ......57/901*

ANTITHEFT DEVICES, EG LOCKS ......... 70
  ALARMS ............................340/500+
     FOR VEHICLE ....................340/426+
  VEHICLE IGNITION DISABLING ........307/10.3+

ANTITHUMB SUCKING ................... 128/857+

ANTITOXINS .......................... 424/85.1+
  SYRINGES ..........................604/187+


ANTIVERMIN .......................... 43/124+
  ANIMAL TREATMENT ..................119/156+
  PERCHES FOWL ......................119/25

ANTIVIBRATION (SEE ANTINOISE)

ANVIL ............................... D08/46
  ASSEMBLING AND DISASSEMBLING ......29/283
  BLACKSMITH ........................72/476+
  BOLT AND RIVET MAKING .............470/208
  HAMMER ATTACHED ...................72/407+
  HAMMER OR PRESS ...................72/462+
  HOLLOW RIVET SETTING ..............227/61+
  MACHINE COMBINED ..................29/560+
  NAIL EXTRACTOR ....................254/19
  PILE OR POST ......................173/128
  SAW SETTING .......................76/73
  SAW SWAGING .......................76/57
  TOOL DRIVING ......................173/128
  VISES COMBINED ....................72/457+

APA-6 ............................... 540/312

APARTMENTS .......................... 52/234+
  ROLLING PARTITIONS ................160/351
     HANGING OR DRAPE TYPE ..........160/350

APERTURE CARD ....................... 493/944*

APIARIES ............................ 449


APPAREL (SEE TYPE OF ARTICLE WORN;
 CLOTHES) ...........................2
  ADORNMENT, ATTACHABLE .............D11
  APPARATUS .........................223
     BOOT AND SHOE MAKING ...........12
     KNITTING .......................66
     PATTERNS .......................33/2.R+
     SEWING .........................112
     WEAVING ........................139
  BLOUSE, SHIRT .....................D02/840+
     DESIGN .........................D02/896+
     MAKING .........................12
  CAPE, STOLE, SHAWL ................D02/823+
  CATAMENIAL AND DIAPER .............604/358+
     DESIGN .........................D24/125+
  CEREMONIAL ROBE ...................D02/739
  CLEANING
     BRUSHING DEVICES ...............15
     IRONING OR PRESSING ............38
     METHODS ........................8/137+
     WASHING DEVICES ................68
  COAT, JACKET, VEST ................D02/828+
     COAT COMBINED WITH DRESS .......D02/760+
  COLLAR MAKING .....................83/901*
  CONTAINERS FOR ....................206/278+
     MAKING .........................493/938*
     MAKING GARMENT BAG .............493/935*
     MAKING WITH SUPPORT ............493/939*
  COSTUME ...........................D02/741
     HOSIERY ........................D02/980+
     NEGLIGEES ......................D02/718+
  DESIGN ............................D02/700+
     HOSIERY ........................D02/983+
  DRESS .............................D02/756+
  EXERCISE SUIT .....................D02/731+
  FEMALE SUPPORT UNDERGARMENTS ......450/1+
  FIRE FIGHTERS .....................169/48+
  FOOTWEAR ..........................D02/896+
  HAND COVERINGS ....................D02/610+
  HEADWEAR ..........................D02/865+
  KNITTED ...........................66/169.R+
  LAYOUT AND MEASUREMENT MEANS ......33/403+
     FOOTWEAR .......................33/4+
     GARMENTS .......................33/11+
  LEATHER MANUFACTURES ..............69
  LIGHT THERMAL ELECTRICAL TREATMENT 607/149+
  LINGERIE ..........................D02/700+
  LOCKS FOR .........................70/59
  MARKING & MEASURING INSTRUMENTS ...33/2.R+
  NECKWEAR ..........................D02/600+
  RESPIRATORS .......................128/200.24+
  SKIRT .............................D02/851+
  STOCKINGS, SOCKS ..................D02/980+
  SWIMMING SUIT .....................D02/731+
  TENNIS ............................D02/731
  TRAVEL BAGS FOR ...................206/278+
  UNDERGARMENTS .....................D02/700+
  VESTMENT ..........................D02/739

APPENDAGE ........................... 425/DIG.3

APPLE TREES ......................... PLT/34.1+

APPLIANCES
  COOKING ...........................D07/323+
  FOOD PREPARATION, HOUSEHOLD .......D07
  MAJOR HOUSEHOLD SEE TYPES .........D15

APPLICATOR
  BRUSHING ..........................15
     MATERIAL SUPPLY COMBINED .......401/268+
  COATING BY ABSORBENT ..............427/429
  COATING BY BRUSH ..................427/429
  COATING OR CLEANING IMPLEMENT .....15/104.1+
     MATERIAL SUPPLY COMBINED .......401
  DAUBING ...........................15
  DISPENSER COMBINED ................141/110+
  ELECTRICAL ........................607/115+
  ELECTROLYTIC ......................204/224.R
  HAIR DYE ..........................D28/7+
  KINESITHERAPY .....................128/24.R+
  LIGHT .............................607/88+
  LOADERS ...........................15/257.5+
  MATERIAL SUPPLY COMBINED ..........401
  MEDICATORS ........................604/19+
  MEDICINAL .........................D24/119
  POLISHING .........................15
     MATERIAL SUPPLY COMBINED .......401
  POWDER COMPACT ....................132/293+
     PAD OVERLYING MATERIAL
       INCLUDING ....................401/130
  SEPARABLE FROM COMBINED
     SUPPLY CONTAINER ...............401/118+
  THERMAL ...........................607/96+
  WIPING ............................15


APPLIERS (SEE APPLICATOR)
  ABRADING SHEET ....................51/275
  ANTISKID DEVICE ...................152/213.R+
  BOOT AND SHOE CEMENT ..............118/410+
  BOOT AND SHOE LINING ..............12/39
  BOX BAIL ..........................493/88
  BOX END ENCLOSURE .................493/102+
  CIGAR AND CIGARETTE MAKING ........131/88+
  HOSE CLAMP ........................81/9.3+
  LABEL PASTING AND PAPER HANGING ...156
  METALLIC LEAF .....................156/540+
  RECEPTACLE CLOSURE ................53/287+
  SEALING WAX .......................401/1+
     DISPENSER WITH HEATING MEANS ...222/146.2
     DISPENSER WITH ILLUMINATOR
       OR BURNER ....................222/113
  SHAPED COSMETIC ...................132/320
  SHEET METAL CONTAINER MAKING
     COMPONENTS .....................413
  SHIP CAULKING .....................114/224
  SKID CHAIN ........................81/15.8
  SURGICAL CLIP .....................29/243.56
  TOOLS FOR ASSEMBLING/DISASSEMBLING 29/700+
  WIRE TO ARTICLES ..................140/93.R+
     WINDING ON .....................242
  WOODWORK GLUEING AND PRESSING .....156

APPLIQUE ............................ 428/914*
  DESIGN ............................D05/63+
  SEWN ..............................112

APRICOT TREES ....................... PLT/39

APRON SEE ASSOCIATED MACHINE
  APPAREL ...........................2/48+
     DESIGN .........................D02/861+
     DESIGN, COMBINED WITH DRESS ....D02/775+
  CIGAR AND CIGARETTE MACHINE .......131/47+
  DRAWBRIDGE ........................14/47
  DUMP CAR ..........................105/279
  LATHE .............................82/135+
  SHIP LEAK STOPPER .................114/229
  VEHICLE FENDER ....................293/41
  VEHICLE STORM PROTECTOR ...........296/77.1+


AQUA REGIA
  DETERGENT CONTAINING ..............252/101

AQUAPLANES (SEE SKI; SLED; SURFBOARD;
 TOBAGGON) ..........................441/65+
  DESIGN ............................D21/224+

AQUARIUM ............................ 119/245+
  AERATOR ...........................119/263+
  COVER .............................119/265+
     WITH LIGHT .....................119/266
  DESIGN ............................D30/101+
  FILTER ............................210/416.2
     COMBINATION ....................119/259+
  ILLUMINATION ......................119/267
  IMMERSION WATER HEATER ............D23/316

AQUASOLS SEE SOL

AQUATIC ANIMAL CULTURING ............ 119/200+

AQUATIC DEVICES (SEE BOATS; BUOYS;
 LIFESAVING; SWIMMING) ..............441

AQUATIC PLANT DESTRUCTION ........... 504/150+

AQUEDUCTS ........................... 405/84

AQUEOUS FLUIDS
  EARTH BORING COMPOUNDS ............507/100+


AQUEOUS POLYMERIZATION SYSTEMS  SEE CLASS 523, 524, 526

ARABINOSE ........................... 536/1.11

ARALDITE T M ........................ 528/87+

ARBOR (SEE MANDREL; SHAFT)
  GARDEN ............................47/44+
  PRESS .............................29/251
  PROCESSES OF MAKING WATCH .........29/178
  WATCH AND CLOCK ...................368/322
  WORK ..............................279/2.1+

ARBUTIN ............................. 536/4.1


ARC
  CURVED LINE SCRIBERS ..............33/27.1+
     STRAIGHT LINE ..................33/26
  ELECTRIC
     AND INCANDESCENT LAMP ..........313/8
     BLOWOUT LIGHTNING ARRESTORS ....361/117+
     BLOWOUT MAGNET .................335/210+
       ARC SYSTEM HAVING ............314/20
       ELECTRONIC TUBE SYSTEM HAVING 315/344+
       LAMP HAVING ..................313/153+
       SWITCH HAVING ................20/147.R
     CHEMICAL APPARATUS .............422/186.21
       WITH MAGNETIC FIELD ..........422/186.3
     CHEMICAL PROCESSES NITROGEN ....204/178+
     CHEMICAL PROCESSES WITH
       MAGNETIC FIELD ...............204/156
     CONSUMABLE ELECTRODE EG LAMP ...314
     CONSUMPTION FEED TYPE ..........314/59+
     CORED CARBON LAMP ..............314
     ECONOMIZER COMBINED ............314/25
     EXTINCTION IN A FUSIBLE
       ELEMENT ACTUATED SWITCH ......337/273+
     EXTINCTION IN LIGHTNING
       ARRESTER .....................361/117+
     EXTINCTION OR PREVENTION IN
       SWITCH .......................20/10
     EXTINCTION OR PREVENTION IN
       SWITCH .......................337/110
     EXTINCTION OR PREVENTION IN
       SWITCH .......................20/144.R+
     FEEDING ELECTRODES TO ..........314
     FUME CONDENSER FOR .............314/26+
     FUME FLOW DIRECTOR .............314/26+
     FURNACES .......................373/60
       INDUCTION ....................373/7
       RESISTANCE ...................373/5+
       RESISTANCE WITH INDUCTION ....373/6
     GLOBES FOR .....................362/363
     LAMPS ..........................313
       ELECTRODE COMPOSITION ........252/500+
       ELECTRODE HOLDER .............403
       ELECTRODE STRUCTURE ..........313/326+
       HANGERS ......................362/416
       MANUFACTURE ..................445
     METAL HEATING ..................219/121.11+
     METAL HEATING AND CASTING ......164/250.1
       IN CONTINUOUS CASTING
        APPARATUS ...................164/505+
     PLURAL DIVERSE HEATING MEANS ...373/1
       WITH INDUCTION ...............373/4
       WITH RESISTANCE ..............373/3
     PROJECTORS USING ...............362/261+
     RECORDER .......................346/150
     REGULATING CONSUMABLE ELECTRODE 314
     REGULATING GENERALLY ...........315
     SEARCH LIGHT ...................362/261
     SHADE OR BOWL SUPPORTS FOR .....362/433+
     SPACE DISCHARGE DEVICES,
       MANUFACTURE ..................445
       SPOT KNOCKING ................445/5
     STAGE SPOTLIGHTS ...............362/261+
     SUPPLY SYSTEMS .................315
     SUSPENDED SUPPORT FOR ..........248/317+
     SUSPENSION SUPPORTS FOR ........362/391+
     TELEGRAPH RECEIVER .............178/92
     TIP CLEANER FOR ................314/23+
     TOWER OR POST FOR SUPPORTING ...52/40
     TREATING MATERIALS WITH ........422/186.21
     VENTILATOR FOR .................314/26+
     WELDING ........................219/136+
  FURNACE
     CHEMICAL .......................422/186.21+
     WELDING ELECTRODE HOLDER .......219/138+
  GAS LAMP ..........................313/567+
     CIRCUIT ........................315
     STRUCTURE ......................313/567+
  METAL HEATERS .....................219/121.11+
  SAW MACHINES ......................83/782
  SLICER BLADE ......................144/167
  WELDING ...........................219/121.11+
     ELECTRODE ......................219/145.1+

ARCH ................................ 52/86
  ARCH BAR BOGIE ....................105/204+
  BRIDGE
     ARCH ...........................14/24+
     TRUSS AND ARCH .................14/2
  DOORWAY ...........................52/85
  FIRE TUBE BOILERS
     WATER ARCH .....................122/89
     WATER ARCH SUBJACENT ...........122/79
  FURNACE ...........................110
     ARCH PER SE ....................110/331+
     DOOR ARCH ......................110/181+
  GARDEN ............................47/44
  MASONRY ...........................52/89
  MONOLITHIC ........................52/88
  SUPPORT FOR FOOTWEAR ..............36/71
     DESIGN .........................D02/961
     SHOE WITH ......................36/140+
     VENTILATED .....................36/3.R
     WITH BANDAGE STRUCTURE .........602/66


ARCHERY
  ARROWS AND DARTS ..................273/416+
  BLOW GUNS .........................124/62
     DESIGN .........................D22/102
  BOW ...............................124/23.1+
     COMPOUND .......................124/25.6
     CROSS BOW ......................124/25
  DESIGN ............................D22/107
  DESIGN ............................D22/107
  ELASTIC BAND GUNS .................124/22

ARCHITECTURE TEACHING ............... 434/72+

ARCHITRAVE .......................... 52/211+

ARCTICS RUBBER ...................... 36/7.3

AREA
  CALCULATORS .......................33/121+
  INTEGRATORS .......................33/121+
     VELOCITY INTEGRATORS ...........73/227
  MONITORS
     NUCLEAR ENERGY .................250/336.1
     SCINTILLATION TYPE .............250/361.R+

AREAWAY ............................. 52/107

ARECOLINE ........................... 546/318