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:


H ACID .............................. 562/71

HABITAT, AQUATIC ANIMAL
  CRUSTACEAN ........................119/207+
  FISH ..............................119/220+
  MOLLUST ...........................119/238

HABITAT, SUBMARINE .................. 114/314

HACK SAW ............................ 30/507+
  COMBINED ..........................7/149+
  DESIGN ............................D08/96
  HANGING ...........................83/783+

HACKLING
  COMBING ...........................19/115.R+
  DECORTICATING .....................19/5.R+

HACKS TREE .......................... 30/121

HAEMOCYTOMETER ...................... 356/39
  TESTING LENSES ....................356/124+


HAIR
  ARTIFICIAL FURS ...................428/85+
  ARTIFICIAL STRUCTURE ..............132/201
  BEAUTY PARLOR EQUIPMENT ...........D28/10+
  BRUSH .............................15/160+
  CARRIED HAT FASTENERS .............132/60
  CLIPPERS ..........................D28/52+
  COATING COMPOSITIONS ..............106/155+
  CURLERS
     CURLING IRON ...................D28/38
     ELECTRICALLY HEATED ............219/222+
     FLUID FUEL HEATED ..............126/408+
  CUTTERS ...........................30
     DESIGN .........................D08/57
     DESIGN CLIPPERS ................D28/52+
     FOR INSIDE EAR OR NOSE .........30/29.5
     HAIR PLANERS ...................30/30+
  DRYING ON HEAD
     APPARATUS ......................34/96+
     PROCESSES ......................34/3
     SUPPORTS FOR ...................34/101
  DYE APPLICATOR ....................D28/7+
  DYEING AND DYES ...................8/405+
  FASTENERS .........................132/273+
     DESIGN .........................D28/39+
  FERTILIZER FROM ...................71/18
  HAIRPIECE .........................D28/92+
  INSERTERS .........................606/187
  JEWELED FASTENER ..................63/2
  NET ...............................132/274
  PINS (SEE HAIRPINS) ...............132/276+
  PLANERS ...........................30/30+
  REMOVING SEE NOTES ................30/32
     BURIAL PREPARATION .............27/21.1+
     BUTCHERING .....................452/71+
     COARSE OR WATER HAIR FROM FUR ..69/24+
     CUTTERS FOR INSIDE EAR OR NOSE .30/29.5
     DEPILATING UNTANNED SKINS ......8/94.16
     DEPILATORIES ...................8/94.16+
     ELECTRIC NEEDLE ................606/44
     ELECTRIC NEEDLE SUPPORTS .......606/44
     FIBER LIBERATING ...............19/2
     FUR TREATMENT ..................69/24+
     RAZORS .........................30/32+
     SURGICAL INSTRUMENTS ...........606/222+
     TWEEZERS .......................606/133
  SHAMPOOING APPARATUS ..............4/515+
  SHEARING, FUR FINISHING ...........26/15.R+
     THINNING SHEARS ................30/195
  SPRINGS ...........................368/175+
  STRAND MAKING
     COVERING BY SPINNING ETC .......57/4
     SPINNING ETC ...................57/28+
  SYNTHETIC RESIN OR NATURAL RUBBER  524/12
     CONTAINING COMPOSITIONS ........524/12
  TEXTILE SPINNING ETC ..............57/29
  THINNERS ..........................30/195
     DESIGN .........................D28/52+
  TOILET PREPARATIONS ...............424/70+
  TREATING PROCESS ..................132/200+
  TUFTING HAIR IN DOLL OR WIG .......112/80.2
  WAVING ............................132/200+

HAIRPIN ............................. 132/276+
  DESIGN ............................D28/39+
  DISPENSER .........................132/332
  HAT FASTENER CORD OR LOOP AND .....132/61
  MAKING ............................140/87
  PACKAGING .........................227/25

HALF BELTS .......................... 2/309

HALF WAVE
  GAS RECTIFIER .....................313/567+
     WITH HOT CATHODE ...............313/629
  HIGH VOLTAGE RECTIFIER ............313/317+
     WITH EMISSIVE CATHODE ..........313/310
     WITH THERMIONIC CATHODE ........313/310
  RECTIFIER SYSTEM ..................363/13+
     CIRCUIT INTERRUPTER FOR ........20
     DYNAMOELECTRIC MACHINE .........310/10+
     ELECTRONIC TUBE FOR ............313/317+
     GAS TUBE TYPE ..................363/114+
     POWER PACKS ....................307/150
     VACUUM TUBE TYPE ...............363/114+
     WITH FILTER ....................363/39+
     WITH VOLTAGE REGULATOR .........363/84+

HALFTONE
  BLANKS AND PROCESSES PRINTING .....101/401.1
  ETCHING ...........................156/654+
     X-ART ..........................156/905*
  PHOTOGRAPHIC PROCESS ..............430/396
  PHOTOGRAPHIC SCREENS ..............359/893+
     CHEMICALLY DEFINED .............430/6+
  PRINTING PLATES ...................101/395


HALIDES (SEE MATERIAL HALOGENATED)
  HYDROCARBON .......................570/101+
     AS AZEOTROPES ..................203/67
     ELECTROMAGNETIC WAVE SYNTHESIS .204/157.15+
     ELECTROSTATIC FIELD OR
       ELECTRICAL DISCHARGE SYNTHESIS204/169
  METAL .............................423/462+
     ELECTROLYTIC SYNTHESIS .........204/94
  NITROAROMATIC .....................568/927+
  NONMETAL INORGANIC ................423/462
  ORGANIC ACID ......................562/800+
  RUBBER HYDROHALIDE ................525/332.3

HALL EFFECT MEANS IN AN AMPLIFIER ... 330/6

HALOAMINES .......................... 564/114+
  ACYCLIC ...........................564/118+
     HYDROXY OR ETHER CONTAINING ....564/119
     PLURAL DIFLUORAMIME GROUPS .....564/121+
     UNSATURATED ....................564/120
  ALICYCLIC .........................564/117
  AMIDINES ..........................564/116

HALOGEN COMPOUNDS (SEE MATERIAL
 HALOGENATED)

HALOGENATED CARBOXYLIC ACID ESTERS .. 560/1+
  ACYCLIC ACID ESTERS ...............560/226+
     OF PHENALS .....................560/145
  ACYCLIC AMINO ACID ESTERS .........560/172
  ACYCLIC CARBAMIC ACID ESTERS ......560/161
  ACYCLIC OXY ACID ESTERS ...........560/184
  ACYCLIC POLYCARBOXYLIC ACID ESTERS 560/192
  ACYCLIC UNSATURATED ACID ESTERS ...560/219
  ALICYCLIC .........................560/125
  AROMATIC AMINO ACID ESTERS ........560/47
  AROMATIC CARBAMIC ACID ESTERS .....560/30
  AROMATIC POLYCARBOXYLIC ACID ESTERS560/23
  OXYBENZOIC ACID ESTERS ............560/65
  PHENOXYACETIC ACID ESTERS .........560/62+


HALOHYDRIN .......................... 568/841+

HALOTHIOCARBONATE ESTERS ............ 558/249

HALOWAX ............................. 570/181

HALTER
  BRASSIERE TYPE GARMENT ............450/1+
  FEED BAGS SUPPORTED ON ............119/66
  HARNESS ...........................54/24+
     DESIGN .........................D30/134+
  POKE WITH BAR AND .................119/758+
  SNAP RELEASERS ....................119/776

HAMBURGER
  COOKERS ...........................99/422
  GRINDERS ..........................241
  MOLDING AND SHAPING  SEE
     BRIQUETTING MEAT

HAMES ............................... 54/25+
  COLLAR COMBINED ...................54/18.1+
  DESIGN ............................D30/137
  TRACES AND CONNECTORS .............54/30+
  TUGS ..............................54/32+


HAMMER .............................. 81/20+
  AUTOMOBILE FENDER STRAIGHTENING ...72/705*
  BURGLAR ALARM .....................116/88+
  CLAW ..............................254/26.R
  COMBINED WITH ADDITIONAL TOOLS ....7/143+
  DESIGN ............................D08/75
  DROP FORGING ......................72/435+
  EARTH BORING TOOL COMBINED ........175/135
  FIREARM ...........................42
  FORGING ...........................72/476+
  HEADS FOR PIANO ACTIONS ...........84/254
  IMPACT CLUTCH TYPE ................173/93.5
  IMPLEMENT COMBINED ................81/463+
     AWL OR PRICK PUNCH .............30/358+
  INTERNAL COMBUSTION CHARGE
     IGNITER ROCKING ELECTRODE ......123/157
  LEATHER COMPACTING ................69/1
  MAGAZINE ..........................227/133
  MAKING
     FORGING DIES FOR ...............72/470+
     PROCESSES OF ...................76/103
  METAL BENDING .....................72/462+
  MILLS .............................241/185.5+
     PARALLEL MATERIAL FLOW .........241/138
     PERFORATED DISCHARGE ...........241/86+
     PROCESS ........................241/27
     SERIES MATERIAL FLOW ...........241/154
  MUSICAL INSTRUMENTS
     PIANO ..........................84/236+
     STRINGED INSTRUMENT ............84/323+
     TUNING .........................84/459
  NUT CRACKER .......................30/120.1
  PILE DRIVER .......................173/90+
  PUNCHING MACHINE ..................83
  RIVETING ..........................72/476+
  ROAD RAMMER .......................404/133.5
  ROCK DRILLING .....................175/135+
  ROD ENCIRCLING TYPE ...............81/27
  SAW STRETCHING MACHINE ............76/26
  SCALE REMOVING ....................29/81.15
  SHOE LASTING STRETCHER AND ........12/109
  STONEWORKING COMBINED .............125/6+
     IMPACT TOOLS ...................125/40
  TOOL DRIVING ......................173/90+
  TUBE CLEANER INSIDE ...............15/104.7
  TUNING FOR PIANOS .................84/459
  TYPEWRITER
     BAR ............................40/388+
     KEY WHEEL ......................40/154+
  WELDING ...........................228/24
  WOODWORKING .......................81/20+


HAMMOCK ............................. 5/120+
  BERTH .............................105/320
  DESIGN ............................D06/386+
  SWING .............................297/277

HAMPER OR BASKET .................... D32/37
  LAUNDRY ...........................D32/37


HAND
  ARTICLE MANIPULATED BY MECHANICAL  414/1+
     HAND-LIKE MOVEMENT .............414/1+
  ARTIFICIAL ........................623/57+
  BASKETS ...........................217/122+
  CHECKER RADIOACTIVITY .............250/336.1
     MISCELLANEOUS ..................250/336.1
     SCINTILLATION TYPE .............250/361.R+
  CLOCK AND WATCH ...................368/228
  CLOCK AND WATCH ...................968/142+
     DESIGN .........................D10/127
  COVERINGS .........................D02/610+
  DOLL ..............................446/327+
  DRYERS ELECTRIC ...................392/380+
     DESIGN .........................D28/54.1
  ELECTRIC APPLICATORS ..............607/145+
  EXERCISING APPLIANCES .............128/26
  GLOVES MITTENS AND WRISTLETS ......2/158+
     DESIGN .........................D02/617+
  GRIPS (SEE HANDLE)
     BLOTTER ........................34/95.2
     BOWLING BALL ...................473/127+
     COATING IMPLEMENT    401/6
       WITH MATERIAL SUPPLY .........401/6+
     CRUTCH HAND HOLD ...............135/72
     GOLF CLUB ......................273/81.R+
     HAND WHEEL RIM .................74/558
     HANDLE BAR .....................74/551.9
     PENHOLDER ......................15/443
     REIN HOLDS .....................54/74
     SKI POLE .......................280/821+
     TENNIS RACKET ..................273/75
     WRENCH .........................81/300+
  GUARDS AND PROTECTORS .............2/16
     CUTTING HAND TOOL ..............30/295
     DESIGN .........................D29/20+
     FORK ...........................30/323
     MACHINE SAFETY STOP ............192/130+
  GUIDES RESTS AND STRAPS
     COFFIN LOWERING STRAP ..........27/33+
     RAILWAY CAR STRAP ..............105/354
     STRINGED INSTRUMENT REST .......84/328
     TYPEWRITER KEYBOARD GUIDE ......40/715+
  LEVERS ............................74/523+
  LOOMS .............................139/29+
  MANIPULATED IMPLEMENTS (SEE HAND
     TOOLS)
     APPAREL FLUTING IRON ...........223/36
     ATOMIZER .......................239/337+
     BARS FOR CARRYING ..............294/15+
     BELLS ..........................116/171
     BLOWTORCH ......................431/344
     CUTLERY ........................30
     DENTAL .........................433/141+
     ELECTRIC FLASHLIGHT ............362/208
     FLATIRON .......................38/95
     LANTERN ........................362/257+
     MATERIAL HANDLING ..............294
     PICK FOR STRINGED MUSICAL       84/322
       INSTRUMENT ...................84/322
     SORTING ........................209/614
     TELEPHONE DIALING TOOL .........379/456
     TOASTER OR BROILER .............99/394
  MUFFS DESIGN ......................D02/611+
  OPERATED DEVICES (SEE TYPE OF
     DEVICE OPERATED)
  OPERATED DEVICES AGRICULTURAL AND
     EARTH WORKING
     CULTIVATING TOOLS ..............172/351+
     FORKS AND SHOVELS ..............294/49+
     HARVESTING CUTTER ..............56/239+
     PLANT IRRIGATORS ...............47/48.5
     PLANTING DIBBLE ................111/99
     PLANTING DRILL .................111/82
     RAKES ..........................56/400.1+
     RAKING AND BUNDLING ............56/342
     SCOOP EXCAVATOR WHEELED ........37/434
     SNOW EXCAVATOR .................37/196+
     SNOW EXCAVATOR AND MELTER ......37/230
     SUBSOIL IRRIGATORS .............111/7.1+
  ORGANS AUTOMATIC ..................84/84+
  SETTING MECHANISM FOR ELECTRIC     368/60
     CLOCKS .........................368/60+
  STAMPS ............................101/405
     DESIGN .........................D18/14+
  SURGICAL THERMAL WEAR .............607/145
  TOOLS (SEE TYPE OF TOOL) ..........81
     ASSEMBLING OR DISASSEMBLING ....29/270+
     BARREL CROZE ...................147/24
     BARREL HEAD SCRIBER ............147/41
     BOOT AND SHOE MAKING ...........12/103+
     BUTCHERING INTESTINE CLEANERS ..452/123
     CHERRY SEEDER ..................30/113.1
     CLEANING .......................15
     CLOCK OR WATCH .................968/651+
     CUTLERY ........................30
     DENTAL .........................433/25
     FISH SCALING ...................452/105
     FORKS AND SHOVELS ..............294/49+
     HOG SCRAPERS ...................452/94
     MEAT AND VEGETABLE .............30
     MEAT TENDERIZERS ...............452/141+
     OYSTER OPENERS .................452/17
     PEACH STONER ...................30/113.1
     PICK, MINERS ...................125/43
     PLURAL DIVERSE TOOLS ...........7
     RAILWAY MAIL DELIVERY ..........258/3
     RAISIN SEEDER ..................30/113.1
     RAKE ...........................56/400.1+
     TAMPER FOR TRACK LAYING ........104/13+
     TUFTING EG CHENILLE APPLYING ...112/80.3+
     TYING CORDS OR STRANDS .........289/17
     WITH LIGHT .....................362/119+
  VEHICLES
     LAND OCCUPANT PROPELLED BY HAND 280/242.1+
     RAILWAY HAND CAR ...............105/86+
     SCOOP EXCAVATOR ................37/435+
     SELF LOADING TYPE ..............414/444+
     TRUCK LADDER ...................182/127
     TRUCK LADDER WITH
       ERECTION MEANS ...............182/63+
     TRUCKS AND BARROWS .............280/47.17+
     TRUCKS AND BARROWS DUMPING TYPE 298/2+
  WHEELS ............................74/552+

HAND CART DESIGN .................... D34/12+

HAND MIRROR ......................... 359/882
  PLURAL MIRROR .....................359/850+

HANDBAGS ............................ 150/100+
  DESIGN ............................D03/42+
  FRAME .............................D03/54
  LATCH .............................D08/331+

HANDCUFFS ........................... 70/16+
  CARRIER ...........................224/914*

HANDGUN (SEE PISTOL; REVOLVER)

HANDICAPPED PERSON HANDLING ......... 414/921*

HANDKERCHIEF
  DESIGN ............................D02/500+
  GARMENT ATTACHING MEANS ...........24/3.R+
  GARMENT WORN ......................2/279
  LACE ..............................87/10
  MEDICATED .........................604/358+


HANDLE (SEE GRIP) ................... 16/110.R
  ARTICLE CARRIER ...................294
  ASYMMETRIC-TYPE
     COFFEE,TEAPOT AND PITCHER ......D08/DIG.9
     LEVER TYPE .....................D08/DIG.1
  BAR ...............................74/551.1+
     DESIGN .........................D12/178
     HANDGRIP DESIGN ................D08/303
  BATTERY HANDLE ....................16/DIG.15
  BICYCLE GRIP ......................D08/DIG.8
     VEHICLE EQUIPMENT DESIGN .......D12/178
  BRUSHWARE .........................D04
  CABINET WITH ......................312/244
  CANE TYPE .........................135/65+
  CAST OR MOLDED HANDLES ............16/DIG.19
  CLEANING EQUIPMENT, HOUSEHOLD .....D07
  CLEANING EQUIPMENT, MACHINERY .....D15
  COMPOSITION HANDLES ...............16/DIG.18
  COOKER ............................D07
  DASHBOARD .........................296/71
  ELONGATED, FOR TOOLS ..............D08/DIG.7
  EXTENSIBLE ........................16/115
  FASTENINGS ........................16/DIG.24
     BRUSHING MACHINES ..............15/22.1+
     CLAMP BAND .....................16/DIG.25
     CUTLERY BLADE AND HANDLE .......30/340+
     CUTLERY DETACHABLE BLADE .......30/329+
     GOLF CLUB HANDLE ...............273/80.R
     LUGGAGE ........................190/115
     TOOL ...........................403
  FAUCET AND VALVE WHEELS ...........D08/DIG.3
  FISHING REEL ......................242/281+
  FLUORESCENT AND PHOSPHORESCENT ....250/465.1
  FLY SWATTER .......................D22/124
  FORMING, PAPER ....................493/909*
  GOLF AND SKI GRIPS ................D08/DIG.6
  GUN ...............................89/1.42
  HAND CARRYING .....................294/137+
  HAND GRIPS, PREFORMED,SEMIPERMANENT16/DIG.12
  HANDWHEEL .........................74/552
     HANDLES FOR HANDWHEELS .........74/557
     INSULATED ......................16/117
     PIPE JOINT .....................285/38
  INSULATED .........................16/116.R+
     COATING IMPLEMENT ..............401/3
     ELECTRIC .......................174/46
  KITCHEN UTENSIL ...................D07
  KNIFE .............................30/162
  KNIFE AND FORK ....................D08/DIG.4
  KNOB-TYPE .........................D08/DIG.2
  LOCKED ............................70/207+
  LUGGAGE OR HANDBAG ................D08/300+
  MAKING
     HOLLOW CUTLERY TYPE ............76/106
     WOOD ...........................144/11
  MATTRESS ..........................5/466+
     DIGEST, HARDWARE ...............16/DIG.28
  MOVABLE CLOSURE ...................49/460+
  NOZZLE ............................239/525+
  PACKAGE AND RECEPTACLE ............294/137+
     BAIL TYPE ......................220/773+
     BASKET .........................217/125
     CLOSURE FASTENER COMBINED ......220/315
     DISPENSER ......................222/465.1+
     DISPENSER DISCHARGE ASSISTANT
       COMBINED .....................222/323+
     DISPENSER TRAP CHAMBER
       COMBINED .....................222/441
     FLEXIBLE BAG ...................383/6
     LUGGAGE ........................190/115+
     LUGGAGE FASTENER COMBINED ......190/118
     PAPERBOARD BOX .................229/117.9+
     RESILIENT WALL DISPENSER .......222/210
     TRUNK ..........................190/39
  PAN ...............................D07
  PULL-TYPE .........................D08/DIG.1
  PYROTECHNIC OR EXPLOSIVE ARTICLES .102/358+
     SHELL THROWER ..................102/486
  RECEPTACLE TYPE HANDLE  SEE
     MAGAZINE .......................16/110.5
     CANE ...........................135/65+
     COATING IMPLEMENT ..............401
     CUTLERY ........................30/125
     FIREARM MAGAZINE ...............42/7
     INSULATED ELECTRICALLY .........174/46
     MANICURING TOOL ................132/75
     RAZOR ..........................30/86
  RETRACTABLE .......................16/115
  SPORTING GOODS, MISC ..............D21
  SWITCH ............................20/329+
  SWORD .............................D08/DIG.5
  TOOL AND IMPLEMENT ................81/489+
     CLEANING TOOL ..................15/143.1+
     CURRY COMB .....................119/94
     DISPENSER COMBINED .............222/191
     DRIVE CONTROL ..................173/170
     DRIVE FLUID PASSAGE ............173/168+
     FLEXIBLE ABRADANT ..............51/392+
     FORKS AND SHOVELS ..............294/57+
     GOLF CLUB ......................273/81.R+
     LIGHT SUPPORT ..................362/399
     MANIPULATING FOR DRIVE OR HAMMER173
     MULTIPLE TOOL ..................7/167+
     PRINTING STAMP .................101/405+
     RAZOR ..........................30/85+
     RIGID ABRADANT .................51/205.R
     SADIRON ........................38/90+
     SAW ............................30/166.3+
     SHEARS DETACHABLE BLADE AND     30/260
       HANDLE .......................30/260
     WRENCH .........................81/177.1+
  VALVE
     DETACHABLE ACTUATOR ............251/291+
     DISABLING MEANS ................251/89+
     STOPS ..........................251/284+
  VEHICLE SEAT BACK GRIPS ...........297/183
  WITH INDICIA ......................40/642


HANDLING (SEE CONVEYOR)
  CASTINGS WITH CASTING DEVICE ......164/269
  COMPLETED WORK, OF SEWING MACHINE .112/121.29
  EARTH BORING DRILLING FLUID
     OR CUTTINGS ....................175/207+
  FLUID HANDLING
     BATH, CLOSET, SINK & SPITTOON ..4
     PIPES OR TUBULAR CONDUITS ......138
     VALVES & VALVE ACTUATION .......251
     VENTILATION ....................454
  HANDICAPPED PERSON ................414/921*
  HANDLER-TYPE TOYS .................414/915*
  HANDLERS USING PARALLEL LINKS .....414/917*
  HANDLERS WITH SPRING DEVICES ......414/913*
  IMPLEMENTS
     BAKERS PEEL ....................294/49
     COMBINED OR CONVERTIBLE ........414/912*
     HAND AND HOIST LINE IMPLEMENTS .294
     HAND TOOLS .....................81
     SORTING MANUALLY ...............209/614
  MECHANISM
     COIN ...........................453
     DRYER FOR HOLLOW ARTICLES WITH .34/105+
     DRYER ROTARY DRUM TYPE WITH ....34/108+
     DRYER ROTARY DRUM WITH .........34/108+
     DRYER SHELF OR TRAY ............34/194
     DRYER WITH FOR DRIED MATERIAL ..34/236
     FISH NET .......................43/8
     FURNACE CHARGING ...............414/147+
     TARGET .........................273/406
     TRAP SHOOTING TARGETS ..........273/406
  METAL FORGING WORK ................72/419+
  NUCLEAR REACTOR COMPONENTS ........376/146
  NUCLEAR REACTOR COMPONENTS ........376/260
  NUCLEAR REACTOR COMPONENTS ........376/260
  NUCLEAR REACTOR COMPONENTS ........376/308
     CHARGING OR DISCHARGING ........414/146
  PHOTOGRAPHIC FLUID TREATING .......354/340
  PIPE OR CABLE .....................414/745.1+
     SUBMERGED ......................405/158+
  ROLLING MILL WORK SHIFTER .........72/200
  SHIFTABLE HANDLER, TRANSMISSION    414/918*
     LINE FOR .......................414/918*
  SOLID MATERIAL HANDLING
     CHUTES, SKIDS, GUIDES,& WAYS ...193
     DELIVERY TO OR FROM MOVING
       VEHICLE ......................258
     ELEVATORS ......................187
     FLUID CURRENT CONVEYERS ........406
     FOOD ...........................99
     FURNACE ASH ....................110/165.R+
     HAND & HOIST-LINE IMPLEMENTS ...294
     HOISTS .........................414/592+
     MARINE LOADING OR UNLOADING ....414/137.1+
     MATERIAL OR ARTICLE ............414
     PACKAGE & ARTICLE CARRIERS .....224
     PNEUMATIC DISPATCH .............406
     POWER-DRIVEN CONVEYERS .........198
     STACKING .......................414/788.1+
     STORE SERVICE ..................186
     TRAVERSING HOISTS ..............212
     UNSTACKING .....................414/795.4+
  TOY, MATERIAL HANDLING ............446/424+
  TRAVERSING HOISTS .................212
  VEHICLES WITH OVERHEAD GUARD FOR   414/914*
     OPERATOR .......................414/914*

HANDPIECE SEE HAND, MANIPULATED
  DENTAL ............................433/114+

HANDRAIL ............................ D25/119+
  SUPPORT ...........................D08/363

HANDSAW ............................. 30/166.3+
  COMBINED WITH DIVERSE TOOL ........7/148+

HANDWHEEL ........................... 74/552+


HANGER (SEE SUSPENSION DEVICES) ..... 224/232+
  BED BOTTOM
     FRAME ..........................5/207+
     SLAT ...........................5/238
  BROOM TYPE ........................248/110+
  BUTCHERING ........................452/187+
  EAVES TROUGH ......................248/48.1
  GARMENT ...........................223/85+
     ATTACHED TO GARMENT ............2/271
     DESIGN .........................D06/315+
     MAKING .........................140/81.5
  GATE ..............................16/86.1+
  ILLUMINATING LIGHT SUPPORT ........362/432+
  MOVABLE COMPONENT .................52/64+
  PANEL MOVABLE .....................16/87.R+
  PIPE ..............................248/58+
  RACK ..............................211
  RAILWAY
     CABLE RAIL .....................104/115+
     TRACTION CABLE .................104/182
     TROLLEY ........................104/111
  ROD FOR SHEET OR LEAF HANDLING ....294/5.5
  SCABBARD ..........................224/232
  SHAFT .............................384/215+
  SIFTER SUPPORT ....................209/415
  SLENDER ARTICLE TYPE, INCLUDING
     BROOM ..........................211/60.1
  SUSPENDED ROOF ....................52/83
  TENT ..............................135/119
  TRAIN VESTIBULE FACE PLATE ROD ....105/22

HANGING
  CABLE TRAVERSING HOIST ............212/133
  CANOPIES ..........................135/905*
  GRINDSTONE ........................51/168+
  PAPER .............................156/574+
     DESIGN .........................D05
  PLANT RECEPTACLES .................47/67+
  SHIPS RUDDER ......................114/165
  SIGN EXHIBITING ...................40/617
  WOOD SAW ..........................83/469+

HANKS
  FINISHING .........................28/287+
  SAILS AND RIGGING .................114/114
  SPINNING TWISTING AND TWINING .....57/25+
  WINDING ...........................242/53


HARBOR
  CHANNELS ..........................405/84+
  FLOATING ..........................114/258
  WHARVES ...........................405/284+

HARD-HAT ............................ 2/411+

HARDENING
  AGING .............................148+
     IRON ...........................148/622+
  CAST IRON .........................148/612+
  ELECTRIC HARDENING
     APPARATUS ......................219/50+
     INDUCTIVE APPARATUS ............219/6.5+
     PROCESSES ......................148/566+
  ELECTROPHOTOGRAPHIC FIXATION ......355/282+
  FAT ...............................554/141+
  GLASS .............................65/111+
  QUENCHING IRON ....................148/660+
     LOCALIZED HEAT TREATED STOCK ...148/902+
     LOCALIZED TREATMENT ............148/639+
     WORKING COMBINED ...............148/648+
  STEEL .............................148/579+

HARDNESS TEST ....................... 73/78+
  ELECTRIC SPACE DISCHARGE DEVICES   324/413
     VACUUM .........................324/413


HARDWARE MISCELLANEOUS .............. 16
  BRUSHINGS OR LINING THIMBLES ......16/2+
  CARPET FASTENERS ..................16/4+
  CASTERS ...........................16/18.R+
  CHECKS & CLOSERS ..................16/49+
  DESIGN OF .........................D08
  FERRULES, RINGS & THIMBLES ........16/108+
  GATE HANGERS ......................16/86.1+
  HANDLES ...........................16/110.R+
  HINGES ............................16/221+
  NESTING HINGE LEAVES ..............16/DIG.29
  SASH BALANCES .....................16/193+
  SASH WEIGHTS ......................16/216+
  SASH-CORD FASTENERS ...............16/202+
  SASH-CORD GUIDES ..................16/210+
  TRACKS, TRAVELERS, PANEL HANGERS ..16/87.R+
  WINDOW-BEAD FASTENERS .............16/220+

HARMIDINE ........................... 546/86

HARMONIC
  ELECTRIC
     FILTERING ......................333/175+
     GENERATION BY OSCILLATORS ......331/53
     HARMONIC OR REED TELEGRAPHS ....178/47+
     INTENSIFIER FOR LOUDSPEAKER     381/161
       OR EARPHONE ..................381/161
     PARTY LINE RINGING .............379/179
     SEMIAUTOMATIC TELEPHONE RINGING 379/252
     TELEPHONE RINGING ..............379/372+
     WAVE ANALYSIS ..................324/76.12+
  MUSIC
     TUNINGS OR ARRANGEMENTS OF      84/312.R
       STRING .......................84/312.R
  MUSICAL
     ELECTRIC ORGAN SELECTIVE        84/659
       CONTROL OF TONE PARTIALS .....84/659+
     ELECTRIC ORGAN WITH TUNED       84/622
       GENERATOR CONTROL ............84/622+
     PIANO HARMONIC DAMPERS .........84/234
  RELAYS ............................335/94
     CIRCUITS .......................361/182+
     SELECTIVE SYSTEM ...............340/825.39
  RELAYS ............................335/101
     STRUCTURE ......................335/243+


HARMONICAS .......................... 84/377+
  DESIGN ............................D17/12
  HARMONICA DIGEST ..................84/DIG.14

HARMONIUMS (SEE ORGAN, REED) ........ 84/351+

HARNESS (SEE BODY, HARNESS) ......... 54
  ANIMAL STOCKS .....................119/729+
  BODY
     FIRE ESCAPE ....................182/3+
     LAND VEHICLE OCCUPANT ..........280/290
     PARACHUTE ......................244/151.R
  BRIDLES ...........................54/6.1+
  BUCKLES ...........................24/164+
     DESIGN .........................D30/139
  CHECKING DEVICES ..................54/70
  COLLARS ...........................54/19.1+
  DESIGN ............................D30/134+
  FEED BAGS SUPPORTED BY ............119/67
  HAMES .............................54/25+
  HAND PACKAGE CARRIER ..............294/157+
  LOOM ..............................139/82+
     DRAWING IN WARP ................28/203.1+
     HAND PUSHED ....................139/30+
  MOTIONS FOR DOBBY LOOMS ...........139/66.R+
  PADS ..............................54/65+
  SADDLES ...........................54/38.1+
  STIRRUPS ..........................54/47+
  TRUNK .............................190/27
     PROTECTING .....................190/26

HARP
  AEOLIAN IE WIND DRIVEN ............84/330
  AUTOHARP OR ZITHER ................84/286+
  JEWS HARP .........................84/375
     TOY ............................446/397+
  MUSICAL STRINGED INSTRUMENT .......84/264+
     DESIGN .........................D17/16
  PIANO .............................84/258
  SUPPORT FOR LAMP ..................362/417


HARPOONS
  BOMB LANCES .......................102/371
  FISHING ...........................43/6
  GUN ...............................89/1.7
     MECHANICAL .....................124
  HANDLING IMPLEMENT ................294/125+
  LINE CARRYING SHELLS ..............102/504

HARROW .............................. 172
  CULTIVATOR COMBINED ...............172/133+
  DESIGN ............................D15/10+
  DISC SHARPENER ....................76/85
     ABRADING ATTACHMENT ............51/246+
  PLOW COMBINED .....................172/133+
  ROLLER COMBINED ...................172/173
  SCRAPER OR DRAG COMBINED ..........172/197

HARVESTER
  AGRICULTURE .......................56
     BUNDLE DISCHARGING CARRIER .....56/474+
     CARRIER ........................56/473.5
     COMPRESSING AND DRIVING ........56/432+
     GUARDS .........................56/DIG.24
     MOTORIZED ......................56/10.1+
     RAKE AND RAKERS
       BUNDLING AND .................56/341+
       HAND RAKES ...................56/400.1+
       HORSE RAKE ...................56/375+
       LOADING AND ..................56/344+
       TEDDERS AND ..................56/365+
     SHOCKER ........................56/401+
     STALK CHOPPERS .................56/500+
       CATCHING AND .................56/194+
       CONVEYING AND ................56/153+
       CONVEYING BINDING, AND .......56/131+
       RAKING AND ...................56/193+
       WINDROWING ...................56/192+
  DESIGN ............................D15/26+
  KNIFE HOLDER ......................51/222+
  KNIFE SHARPENER ...................51/36
  MARINE ............................56/8+
  MINING ............................299
  POTATO OR BEET DIGGER .............171
  TREE FELLING ......................144/34.R


HASP
  CLOSURE FASTENER ..................292/281+
  LOCK ..............................70/2+

HASSOCKS ............................ 297/462
  DESIGN ............................D06/349+