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:


HILLING AND HILL PLANTING ........... 111
  RIDGING AND COVERING PLOWS ........172/642

HINGE OR HINGED JOINT (SEE DEVICE
 HINGED) ............................16/221+
  ADJUSTABLE ........................16/235+
  BELT FASTENER .....................24/33.R+
  BREAKAWAY .........................16/222
  CHECK AND CLOSER COMBINED .........16/50
     FOR NUCLEAR REACTOR
       MODERATOR STRUCTURE ..........376/285
     LIQUID CHECK ...................16/54+
     PNEUMATIC CHECK ................16/68
  DESIGN ............................D08/323+
  FLACCID CLOSURE MOUNT .............49/147
  FLASK SECTIONS ....................164/391+
  HEADLIGHT HINGE ...................16/DIG.26
  MAGNETIC ..........................16/DIG.14
  MAKING ASSEMBLY OR MOUNTING
     METAL ..........................29/11
     WOOD SEAT CUTTING ..............144/27
  NESTING HINGE LEAVES ..............16/DIG.29
  PIPE JOINTS .......................285/273
     DETACHABLE .....................285/283
  PIVOTAL SHEET RETAINER ............402/26+
  PLASTIC ...........................16/DIG.13
  ROD ...............................403/119+
     ADJUSTABLE ANGLE ...............403/83+
  RUBBER SLEEVE BEARINGS & HINGES ...16/DIG.33
  SEPARABLE .........................16/254+
  SNAP-HINGE ........................16/227
  SPRING ............................16/277+
  STEPLADDER ........................182/174+
  STOP ..............................16/374+
  STOVE DOOR ........................126/194
  TOILET SEAT .......................4/240
     COVER COMBINED .................4/236
  TOOL HANDLE FASTENINGS
     ADJUSTABLE ANGLE ...............403/84+
     FREELY SWINGING ................403/52+
  WATCHCASE .........................368/313
  WINDSHIELD ........................296/92

HINGED
  CLOSURES ..........................49/381+
     BARREL .........................217/83
     BOTTOM OPENING HOPPER VEHICLE ..298/29+
     BUILDING SHUTTERS ..............49/381+
     DISPENSER ......................222/556+
     DRAWBRIDGE GATES ...............14/50+
     FENCE PANELS ...................256/26
     FLEXIBLE AND PORTABLE ..........160
     GATES ..........................49
     LOCKETS ........................63/19
     METALLIC RECEPTACLE ............220/334
     OIL CUP ........................184/90+
     OPERATORS FOR ..................49/324+
     PAPERBOARD BOX .................229/125.8+
     PURSE ..........................150/119
     RAILWAY CAR DUMPING ............105/280+
     SHIP PORT ......................114/178
     SPECTACLE CASE .................206/6
     VAULT ROAD OR PAVEMENT .........404/25
     VEHICLE WINDOWS AND DOORS ......296/146.1+
     VEHICLE WINDSHIELDS ............296/86+
     VEHICLE WINDSHIELDS HINGES
       PER SE .......................296/92
     WINDOWS SLIDING AND SWINGING
       SASH .........................49/208+
     WINDOWS SWINGING SASH ..........49/381+
     WOODEN BOX .....................217/57+
  DEVICES
     BASE FOR FOLDING CAMERA ........354/192+
     BED COMBINED ...................5/2.1+
     BELLOWS FOR ROLL TYPE CAMERA ...354/194
     BINDER DEVICE RELEASABLY ENGAGING APERTURE OR
       NOTCH OF SHEET ...............402
     BRACELET MULTIPLE ..............63/9
     BRACELET SINGLE ................63/7+
     BUTTONS AND FASTENERS HINGED
       LEAF .........................24/97+
     CALENDARS HINGED LEAVES ........40/119
     CARD HOLDING CLAMP .............40/647+
     CHANGING EXHIBITOR .............40/446
       DISPLAY ITEMS ................40/530
       ENDLESS TYPE SIGNS ...........40/524
     CULTIVATOR CENTER ..............172/617
     CUTTER FRAME FOR COMBINE .......56/125
     DEMOUNTABLE WHEEL RIMS
       SECTIONAL ....................301/32
     DRAWBRIDGE BASCULE .............14/36+
     EXTENSION LADDER ...............182/163+
     EXTENSION TABLE ................108/65+
     FLUID FUEL WATER HEATER ........126/357
     FOLDING BEDSTEADS ..............5/174+
     FOLDING TABLE ..................108/115+
     FREIGHT CAR SECTIONAL DECK .....105/372
     GARMENT STAYS ..................2/262
     HORSESHOES SECTIONAL ...........168/7+
     INVALID BEDS ...................5/600+
     IRONING TABLE WITH SUPPORTS ....108/115+
     LAMP SHADE ETC DROP SUPPORT ....362/451
     LISTER TYPE CULTIVATOR
       LATERALLY HINGED .............172/640
     LOCKETS ........................63/19
     MOVABLE ON HORIZONTAL
       AXIS .........................211/169.1
     PLOW MOLDBOARD .................172/736
     PNEUMATIC TIRE RIMS SECTIONAL ..152/414
     PROPPED LADDER EG STEPLADDER ...182/165+
     REVOLVER BARREL ................42/63+
     SCOOP TYPE VEHICLE FENDER ......293/44+
     SCREW THREADING DIE STOCKS .....408/180+
     SECTIONAL BOARD IRONING ........38/139
     SECTIONAL MATTRESS .............5/465
     SECTIONAL SCOWS ................114/29
     SHOE LASTS .....................12/136.R
     SLEEPING CAR BERTHS ............105/321
     SLICE TOASTER OR BROILER GRIDS .99/402
     SOFA BEDS ......................5/32.1+
     SURGICAL SPLINTS ...............602/16
     UPENDING BEDSTEADS .............5/133+
     WAFFLE IRON TYPE COOKER ........99/380+
     WALL SUPPORTED TABLE ...........108/134+
     WEATHER STRIPS .................49/475.1+
  HIP ARTIFICAL .....................623/22+

HIPPURIC ACID ....................... 562/450

HISTAMINE ........................... 548/335.5

HISTIDINE ........................... 548/339.1+

HISTORY, TEACHING ................... 434/154


HITCHING
  ANIMAL RESTRAINING DEVICES ........119/769+
     POSTS DESIGN ...................D30/154
  HARNESS TYPE STRAPS ...............54/34
     HOLDERS ........................54/64
  HITCHING POST .....................D30/154
  VEHICLE ATTACHMENTS ...............280/186+

HIVE
  BEE ...............................449/3+
     CONNECTORS .....................449/27+

HMX ................................. 540/475

HOBBING ............................. 409/11
  HOBS ..............................407/23+

HOBBY HORSES ........................ 472/95+

HOCKEY STICK ........................ 273/67.R

HOD
  HOUSEHOLD BIN SIFTER ..............209/376
  MASONS ............................224/44.5
     ENDLESS ELEVATOR FOR ...........198/803.3+
  RECEPTACLE WITH POURING LIP .......222/572


HOE ................................. 172/371+
  DESIGN ............................D08/11
  MAKING
     DIES ...........................72/358+
     PROCESSES AND BLANKS ...........76/109
  SCRAPER ...........................30/171
  WEEDER COMBINED ...................172/375

HOG
  CHOLERA ANTIGENS AND SERA .........424/88+
  OILER .............................119/157
  SCALDERS ..........................452/74+
     SCRAPER COMBINED ...............452/75+
  SCRAPERS ..........................452/94+
  SINGERS ...........................452/73


HOIST & HOISTING (SEE ELEVATOR; LIFT)
  ALARMS FOR ........................116/68
  ARC LAMPS .........................248/317+
  AUTOMOBILE LIFT ...................269/58+
  BUILDING WITH .....................52/122.1+
  CABLE DRUM TYPE ...................254/266+
  DERRICK ...........................254/283+
  DESIGN ............................D34/33+
  ENDLESS OR ROTARY CARRIER COMBINED 414/564
  FIRE ESCAPE .......................182/141+
     LATERAL TRAVERSE COMBINED ......182/12+
  FORKLIFT TRUCK RAMP DESIGN ........D12
  HOIST LINE IMPLEMENTS .............294
  INCLINED FOR BLAST FURNACES .......414/208
     RECEPTACLE MOVED BACK & FORTH   414/168
       ALONG INCLINE ................414/168
  INVALID LIFT ......................5/83.1+
     BEDS WITH ......................5/607
  LOAD HANDLING .....................414/592+
  LOAD HANDLING TYPE TRAVERSING .....414/560+
  MEASURING AND TESTING CABLES AND   73/158
     ROPES ..........................73/158
  NUCLEAR REACTOR CONTROL COMPONENTS 376/219
     FUEL CHARGING & DISCHARGING ....376/268
  ORDNANCE LOADING ..................89/46
  RAILWAY CAR TYPE ..................414/391+
     TRANSPORTS FROM ONE VEHICLE TO  414/342
       ANOTHER ......................414/342
  RAMP DESIGN .......................D12
  SKIDWAY COMBINED ..................414/571+
  SLEEPING BERTH VERTICALLY MOVABLE .105/318
  SLINGS ............................294/74+
  SUBMERGED VESSEL ..................114/51
  TILTING RAILWAY CAR BODY ..........105/273
  TRAVERSING ........................212
  TRUCK LADDER ......................182/63+
  TRUCKS ............................254/2.R+
  VEHICLE HOIST DESIGN ..............D12
  VERTICALLY ADJUSTABLE VEHICLE .....280/43+
  VERTICALLY SWINGING LOAD SUPPORT   414/569
     COMBINED .......................414/569
  WEIGHING ..........................177/147
  WHEEL BRAKE ONE WAY FOR ...........188/82.1+
  WITH WEIGHING SCALE ...............177/147

HOIST LINE IMPLEMENTS ............... 294


HOLD
  BACKS
     ANIMAL DRAFT ...................278/126+
     BREECHING ......................54/5
     HILL HOLD TRANSMISSION CONTROL .192/4.R+
     HILL HOLD VEHICLE ..............188/82.1+
     HILL HOLD WHEEL ................188/30

HOLD-DOWNS .......................... 248/500+
  ELECTROPHOTOGRAPHIC COPIER ........355/230
  FOOD COOKING ......................99/349+
  FOOD COOKING FILLED RECEPTACLE ....99/369
  FREIGHT RETAINING ON FREIGHT       410
     CARRIER ........................410
     CONTAINER TWIST-LOCK ...........410/82+
  PHOTOCOPYING OF BOOK AND SHEET ....355/72+
  PUNCHING MACHINES .................83/374+
  PUNCHING MACHINES .................83/438+
  PUNCHING MACHINES .................83/451+
  SUPPORTS FOR MACHINES COMBINED ....248/680


HOLDER (SEE CONTAINER; RECEPTACLES)
  ANIMAL CATCHING AND HOLDING .......119/801+
  ARC FURNACE ELECTRODE .............373/94+
  ARC LAMPS ELECTRODE ...............403
  ARTICLE LOCKING RACKS .............211/4
  ASSEMBLY JIG ......................269/37
  BAG ...............................248/95+
     GOLF ...........................248/96
  BAIT FISHING ......................43/54.1+
     LIVE BAIT INCLOSING ............43/41
       DESIGN .......................D22/136
  BICYCLE ARTICLE CARRIER SPRING ....224/37+
  BILLIARD CUE CHALKERS .............473/36+
  BLIND SLAT ........................292/345
  BODY AND BELT ATTACHED CARTRIDGE ..224/239+
  BODY OR CLOTHING ATTACHED ARTICLE .24/3.R+
  BOOK AND SHEET
     BOOK LEAF ......................281/42
     BOOK OR SHEET ..................281/45+
     CAMERA PLATE ...................354/276+
     COPY (SEE COPYHOLDER)
     DEPOSITORY .....................402/73+
     GUIDES .........................402/24
     LABEL PASTING ETC ..............156
     LEAF ...........................281/45+
     MUSIC AND ......................248/441.1+
     PRINTING FLEXIBLE SHEET ........101/415.1
     SHEET FEEDING ..................271/8.1+
     STENCIL ........................101/127.1+
     TYPEWRITER CARD ................40/521+
  BOOT TREE .........................12/123.5
  BRACKETS ..........................248/200+
     ARTICLE ........................248/309.1+
     SHELF TYPE .....................248/250
  BRUSH FOR DYNAMO ..................310/239+
  CAMERA ROLL .......................354/212+
  CANDLE ............................431/289+
  CANE ..............................211/62
  CARD ..............................40/642+
  CHAIN .............................24/116.R+
  CIGAR AND CIGARETTE ...............131/187+
     DESIGN .........................D27/183+
     WIND GUARD OR ASH RECEIVER
       COMBINED .....................131/175
  CIGAR TIP CUTTER WITH .............131/250+
  CLASP, CLIP OR SUPPORT CLAMP ......24/455+
     SHIRT COLLAR ...................24/900*
  CLEANER COVER .....................15/247
  CLOSURE FASTENER PORTABLE
     SECURING BAR ...................292/289+
  COIN ..............................206+
  COPY (SEE COPYHOLDER) .............248/441.1+
     MOVABLE COPY OR LINE GUIDE .....40/341+
  CORD ROPE THREAD AND WIRE .........24/115.R+
     FABRIC DELIVERY ROLL ...........242/55.2+
     FISHING FLOATS WITH ............43/44.92+
     HARNESS HITCHING ...............54/64
     HARNESS REINS ..................54/74
     INSULATOR AND CONDUCTOR
       EMBRACING ....................174/154+
     INSULATOR WITH CONDUCTOR .......174/168+
     MEASURING AND DISPENSING .......33/732+
     PIANO BRIDGE ...................84/214
     PIANO BRIDGE ON SOUNDING BOARD
       WITH .........................84/213
     SASH CORD SLACK ................16/208
     SPOOLED STRAND MATERIAL ........242/134+
     TEXTILE SPINNING APPARATUS .....57/353
     TEXTILE SPINNING RECEIVER WITH .57/131
     TWINE UNWINDING ................242/141+
     TYING CORDS OR STRANDS .........289
  CUTLERY AND COMBINED MATERIAL .....30/124+
  DENTAL DAM ........................433/138+
  DENTAL FLOSS ......................132/323+
  DESIGN GARMENT OR BELT ATTACHED ...D03/100+
  DISPENSER HANDLE AND SPOUT ........222/475
  EAR CORN ..........................294/5
  ELECTRIC LAMP ETC CONSUMABLE
     ELECTRODE ......................314/130+
  FLUID DIFFUSERS ...................239/34+
  FLUID SUPPLY AND COMBINED HOSE ....137/355.16+
     WITH NOZZLE ....................239/195+
  FLYPAPER ..........................43/115
  GARMENT AND FABRIC
     ARTICLE SUPPORTING .............24/3.R+
     BED ATTACHED BEDCLOTHES ........5/498
     BED ATTACHED PILLOW SHAM .......5/498
     BEDCLOTHES .....................24/72.5
     CHAIR ATTACHMENTS ..............297/190
     CLOSURE PANEL ELONGATED ELEMENT 160/383+
     CLOSURE PANEL FRAME TYPE .......160/371+
     CLOTHESPINS (SEE CLOTHESPIN)
     CONNECTED SUBSTANTIALLY SPACED
       PLURAL GARMENT ...............2/304+
     CUFF ...........................24/41+
     DRYING CONTINUOUS STRIPS EDGE ..34/158
     DRYING SHEETS ETC MOVABLE ......34/163
     GARMENT TYPE COMBINED ..........2/300
     GARMENT TYPE CONVERTIBLE OR
       REVERSIBLE ...................2/301
     GARMENT TYPE ELEMENTS ..........2/336+
     GARMENT TYPE PARTIALLY
       ENCIRCLING LIMB OR TORSO .....2/309
     GARMENT TYPE PLURAL ENCIRCLING .2/308
     GARMENT TYPE STRIP CONNECTED
       SPACED .......................2/323+
     GARMENT TYPE SUSPENSION AND
       ENCIRCLING ...................2/310
     GLOVE AND FUR SEWING WORK ......112/18+
     LOOPED FABRIC SEWING WORK ......112/27
     NAPKIN .........................138/177
     NECKTIE ........................24/49.R+
     RACK FOR PAPER OR TEXTILE
       SHEETS .......................211/45+
     RIGID VERTICAL TYPE ............2/302+
     SKIRT LIFTER AND ...............2/217
     SORTING RACK BAG ...............211/12
     STACKED ARTICLE TYPE RACK ......211/50+
     TORSO OR LIMB ENCIRCLING .......2/311+
     TOWEL SERVICE CABINET ..........312/34.1+
     VEHICLE LAP ROBE ...............296/77
     WORK MANIPULATING SEWING
       MACHINE ......................112/148
  GEAR CUTTING, MILLING, PLANING ....409/903*
  HAIR
     COMBS ..........................132/219+
     MUSTACHE .......................132/215
  HANDLING TYPE WEIGHER .............177/148+
  HATPIN POINT GUARD ................132/72.1
     WITH GUIDES ....................132/69.1
  HOLLOW WOUND PACKAGE LIQUID
     TREATING .......................68/198
  HOT DISH LIFTING ..................294/27.1+
  ILLUMINATION LENS .................362/455+
  IMPLEMENT AND MACHINE PARTS
     (SEE MANDREL)
     APPAREL MAKING .................223/106+
     AXIAL METALWORKING TOOLS
       AND MOVABLE SLIDE REST .......29/52+
     BOBBIN WINDING OR UNWINDING ....242/130
     BOLT ...........................81/13
     BRUSH AND BROOM ................15/146
     BRUSH BRISTLE ..................15/206
     CAN HEAD SEAMING ROLLER ........413/31+
     CHUCKS OR SOCKETS ..............279
     CIGAR MAKING MACHINE WITH
       WRAPPER FEED OR HOLDER .......131/36
     CIGAR WRAPPER ..................131/105
     COIL WINDING OR UNWINDING ......242/129
     COMPOUND TOOLS .................7/167+
     CUTLERY BLADE DETACHABLE .......30/329+
     DRILL ..........................408/238+
     ELECTRIC GENERATOR AND MOTOR
       BRUSH ........................310/239+
     ENGINE STARTER HANDLE ..........74/551
     FABRIC REELING OR UNREELING ....242/68+
     ILLUMINATING LENS ..............362/455+
     MACHINE TOOL CUTTER MOUNT ......407/66+
     MACHINE TYPE WRENCH WITH BOLT ..81/55+
     MAIN TAPPING MULTIPLE TOOL .....408/31+
     MANICURING FILE ETC WITH
       SEPARABLE ....................132/76.5
     MECHANICAL GUN PROJECTILE ......124/41.1+
     METAL DEFORMING DIE ............124/41.1+
     METAL FILE AND RASP ............29/80
     METALWORKING TURRET WITH ROTARY 29/40
     METALWORKING TURRET WITH
       SLIDING ......................29/41
     MIRROR .........................52
     MOP ............................15/147.1+
     MULTIPLE METALWORKING
       TOOLS OSCILLATING ............29/56
     PIVOTED CLASP HANDLE ENGAGING ..24/489+
     RAZOR WITH SHARPENER ...........30/37+
     RECIPROCATING ABRADING MACHINE .51/68+
     RECIPROCATING WOOD SAW .........83/783+
     RECTILINEARLY MOVABLE MULTIPLE
       METALWORKING TOOLS ...........29/54+
     ROTARY RECIPROCATING ABRADING
       MACHINE ......................51/47
     SAW MAKING FILE ................76/36
     SCREW DRIVER ATTACHMENTS .......81/451+
     SEWING MACHINE ATTACHMENT ......112/257
     SEWING MACHINE BOBBIN ..........112/231
     SEWING MACHINE SHUTTLE .........112/196
     SHEET PUNCHING MACHINE DIE .....83/651
     SKEIN WINDING OR UNWINDING .....242/127
     SOCKET WRENCH WITH NUT .........81/125
     SOUND BOX STYLUS ...............369/160
     SPONGE .........................15/244.1+
       HAVING PIVOTED HANDLE ........15/244.2
     SPOOL WINDING OR UNWINDING .....242/134+
     SPRING DRUM TYPE ARTICLE .......242/107+
     STATIONARY METALWORKING TOOLS
       AND MOVABLE WORK .............29/51
     TOOL HANDLE FASTENINGS .........403
     TYPE CASTING MECHANISM MATRIX ..199/49
     WIPER DAUBER AND POLISHER SHEET 15/231+
  INSECT POISON .....................43/131
  KEY ...............................70/456.R+
     MUSIC KEYBOARD .................84/441
  LIGHT GUARD AND ...................362/376
  LIVE BAIT INCLOSING ...............43/41
     DESIGN .........................D22/136
  LOCK TUMBLER ......................70/328
     PERMUTATION COMPOUND TUMBLER ...70/317
  MANIFOLDING
     BOOK OR LEAF ...................462/71+
     BOOK OR PAD ....................462/72
     PLURAL DISTINCT LEAVES .........462/75+
     TRANSFER LEAF ..................462/74
     TYPEWRITER .....................462/73
  NUCLEAR FUEL ......................376/434
  PACKET ............................24/17.R+
  PENCIL ............................401/88+
  PENHOLDERS ........................15/435+
  PHONOGRAPH RECORD .................312/9.1+
  PHOTOGRAPHIC PLATE ................354/276+
     ROLL FILM ......................354/212+
  PICTURE ...........................40/152+
     SUPPORT TYPE ...................248/488+
     SUPPORT TYPE ...................248/490+
  PILES ARRANGEMENTS SPACERS FOR ....206
  POCKET AND PERSONAL USE ...........206/37+
     TICKET .........................206/39
  RACKS .............................211
     BRIDLES, SADDLES, WHIPS, DESIGN D30/143
  RADIOACTIVE BODY TREATMENT ........60/7+
  RECEPTACLE
     ACETYLENE CARBIDE FEED .........48/38+
     ACETYLENE GENERATOR AND ........48/2
     ACETYLENE WATER FEED ...........48/4+
     ANIMAL CAGE FOOD AND WATER .....119/18
     ARTICLE CARRYING TRAY ..........294/172
     BAIT OR CATCH ..................43/55
     BLACKING BOX ...................15/259
     BLOOD ..........................604/403+
     BOILER OR DEEP FAT FRYER .......99/403+
     BRUSH AND BLACKING BOX .........15/258
     CAMERA WITH STORAGE FOR PLATE ..354/174+
     CLOSET BOWL DISINFECTANT .......4/222+
     CLOSURE REMOVER WITH RECEPTACLE 81/3.8
     COLLAPSIBLE WALL DISPENSER WITH 222/105
     COVER CONTAINING A .............220/521+
     DISPENSER WITH CUTTER AND ......222/81+
     DISPENSER WITH SUPPORT OR ......222/173+
     EXTRACTING OR LEACHING .........422/261+
     FISHING HOOK AND TACKLE ........43/54.1+
     FLOWER .........................47/41.1+
     HANDLE .........................220/752+
     HANDLE CONTAINING A ............16/110.5
     HEATING AND ILLUMINATING GAS ...48/174+
     HIGH PRESSURE GAS ..............220/581+
     INKSTAND .......................248/127+
       DISPENSER TYPE ...............222/577
     INSECT POISON ..................43/131
     INVERTED CONTAINER DRAINAGE ....141/364
     MATCH AND TOOTHPICK ............206/102+
     MATCHBOX .......................206/121+
     MATTRESS FILLING BAT HOLDER ....53/255+
     MEDICATING INHALER GAS .........128/203.12+
     MEDICATOR ......................604/403
     MOTOR VEHICLE BATTERY ..........180/68.5
     PLURAL SOURCE DISPENSER
       STACKING .....................222/143
     RACKS FOR ......................211/71+
     ROTATABLE ASSEMBLY OF
       DISPENSERS ...................222/144
     SPITTOON FLEXIBLE MATERIAL AND .4/285
     SPRAY FLUID ....................239/302+
  REIN ..............................54/74
     DESIGN .........................D30/141
     WHIP SOCKET COMBINED ...........280/177
  SCALE LOAD ........................177/253+
     HANDLING TYPE WEIGHER ..........177/148+
  SLEEPING CAR ARTICLE ..............105/325
  STRINGED MUSIC INSTRUMENT WITH
     ARTICLE ........................84/329
  TAIL ..............................54/78
     COW ............................119/809+
  TELEPHONE .........................379/453+
  TOBACCO ASH RECEIVER WITH
     CIGAR CIGARETTE OR SMOKING
       DEVICE .......................131/240.1+
     MATCH ..........................131/239
  TOOTH .............................433/141+
  TOPS WITH SPINNING DEVICES ........446/262+
  TRAIN DISPATCHING SAFETY SYSTEM
     SIGNAL .........................246/16
  VACUUM-OPERATED LOAD ENGAGERS .....294/64.1+
  VACUUM-TYPE HOLDING MEANS .........269/21
  VALVE HEAD ........................251/89+
     FRICTION DETENT ................251/297
  VEHICLE ...........................280/182+
     HAND LANTERN ...................362/61+
     REIN ...........................280/182
     VEHICLE ATTACHMENT .............280/182+
  WASHBOARD SOAP ....................68/224
  WASHING MACHINE TRANSFERABLE       68/10
     CLOTHES ........................68/10
  WELDING ELECTRODE .................219/145.1+
  WHEEL .............................157/14
  WORK (SEE MANDREL) ................269
     ABRADING .......................51/216.R+
     ABRADING WORK RESTS ............51/238.R+
     ABRADING WORK TABLES ...........51/240.R
     AMMUNITION SHELL LOADING .......86/44
     APPAREL APPARATUS ..............269
     BOOK TYPEWRITER ................40/24+
     BORING MACHINES ................408
     BRUSH BORING ...................408/89+
     BRUSHING SCRUBBING CLEANING ....15/268
     BRUSHMAKING ....................30/10+
     BUTCHERING .....................452/185+
     CAN OPENER .....................30/400+
     CAPPING NAIL AND SCREW MAKING ..470/5+
     CHAIN WELDING ..................59/34+
     CIRCULAR SAW ...................83/409+
     CLEANING AND LIQUID CONTACT
       WITH SOLIDS ..................134/137+
     COLLAPSIBLE STRUCTURE ..........269/901*
     DOOR ...........................269/133
     DRILLING MACHINES ..............408
     ELECTRIC HEATING ...............219/158+
     ELECTROLYTIC APPARATUS .........204/297.R
     FEEDING STOCK COMBINED .........29/56.6
     FORGING MACHINES ...............269
     GEAR CUTTING MILLING AND
       PLANING ......................269
     GLOVE AND FUR SEWING ...........112/18+
     HAIR DRYERS ....................34/101
     HAIR SHAMPOOING APPARATUS ......4/515+
     HAT SEWING MACHINES ............112/13+
     HORSESHOE NAIL FINISHING .......470/35+
     IMMERSION SCOURING ROTARY ......51/19
     IRONING ........................38/64
     IRONING TABLE ..................38/103+
     LEATHER MANUFACTURING ..........69/19
     LOOPED FABRIC SEWING ...........112/27
     MAGNETIC .......................335/285+
     MANUAL SEWING ..................269
     MEAT BLOCKS ....................269/289.R+
     METAL WORKING ..................269
     METALWORKING MULTIPLE TOOL
       LATERALLY MOVING STOCK .......29/51
     MORTISING ......................144/84
     ORDNANCE CARTRIDGE FEEDING .....89/34
     PHOTOGRAPHIC WASHING ...........354/297+
     PRINTING .......................101/407.1+
     RECIPROCATING ABRADING MACHINE .51/64+
       ROTARY .......................51/31
     RIVETS FOR RIVETING ............72/457+
     ROTARY ABRADING ONE WAY WORK
       TRAVERSE .....................51/74.R+
     ROTARY ABRADING OPPOSED TOOL ...51/80.R+
     ROTARY TOOL ABRADING ...........51/109.R
       RADIAL FACE ..................51/109.R
       RECIPROCATING HOLDER .........51/91.R
       STATIONARY HOLDER ............51/98.R
     SAND BLAST ABRADING MOVING .....51/417+
     SAWMILL ........................83/720+
     SCREW HEAD NICKING .............470/60+
     SCREW THREADING MACHINE ........408/103+
     SEWING MACHINE .................112/260
     SHEET METAL WARE MAKING ........269
     SHOE MACHINES NAILING ..........227/154+
     SHOE MACHINES SOLE SEWING ......112/62
     SHOE MACHINES SOLEING ..........12/36+
     SHOEMAKING .....................12/123
     STATIONARY AXIS MILLING CUTTER  409/165+
       ROTATING HOLDER ..............409/165+
     STATIONARY TOOL ABRADING .......51/150+
     STATIONARY VEGETABLE GRATER ....241/273.1+
       GRATER RECIPROCATING HOLDER ..241/84.4
     STENCILING .....................101/126
     STONEWORKING ...................125/35
     VICES ..........................269
     WHEEL SPOKE SETTERS ............157/4
     WIRE NAIL MAKING ...............470/40
     WOOD PLANING BEVELING ..........144/114.R+
     WOOD SAWING ....................83/409+
     WOOD SHAPING ROTARY HOLDER .....144/153
     WOOD TURNING ...................142/57
     WOOD TURNING ...................142/48
     WOOD TURNING POLYGONAL SECTION .142/2+
     WOOD TURNING STEADY RESTS ......142/50
     WOOD TURNING TOOL AND ..........142/48
     WOODWORKING BENCH DOGS .........144/306
     WOODWORKING BENCHES ............144/286.R
     WOODWORKING CLAMPS .............269
     WOODWORKING LATH ...............144/288.5+
     WOODWORKING MACHINE CLAMPS .....144/278.R
     WOODWORKING STANDS .............269/289.R+
     WORK ROTATING ABRADING          51/103.R+
       MACHINE ......................51/103.R+
     WORK SPECIFIC ..................269/909*
     WROUGHT HORSESHOE NAIL MAKING ..470/36
     WROUGHT SPIKE MAKING ...........470/39


HOLDOVER, REFRIGERATION ............. 62/430+
  ACCUMULATION IN SITU ..............62/59
     AUTOMATIC ......................62/139+

HOLE
  PUNCHER, PAPER ....................D19/72+
  PUNCHES ...........................83

HOLIDAY SEASON DECORATION ........... D11/117+

HOLLOW ARTICLE
  BLOCK WALL ........................52/561+
  BLOCKS ............................52/576
     FORMING PASSAGE ................52/503+
     LATERALLY RELATED ..............52/561+
     VOID FORMER ....................52/577
     WITH PASSAGE ...................52/606+
  CAST BARRIER ......................52/380+
     STATIC MOLD ....................249/22
  DRYING
     APPARATUS ......................34/104+
     BILLET PIERCING ................72/327
     COATING ........................427/230+
     COATING BY ELECTROLYSIS ........205/151+
     COOKING APPARATUS ..............99
     DIE EXPRESSING PLASTICS ........425/378.1
     ELECTROFORMING .................205/73
     HANDLES FOR CUTLERY ............76/106
     PROCESS ........................34/21
  INSULATED WALL ....................52/404+
     PROJECTILE MAKING ..............29/1.21
     ROPE MACHINE ...................57/33
     SHEET METAL CONTAINER MAKING ...413
  MAKING BY EXTRUSION METAL .........72/264+
     E.G., CAN ......................10
  MAKING BY POWDER METALLURGY PROCESS419/5
  STUD WALL .........................52/479+

HOLOGRAMS & HOLOGRAPHIC SYSTEMS ..... 359/1+
  MEMORIES, ELECTRIC ................365/125
  RADIATION IMAGERY PROCESS .........430/1+
  SHAPING OR TREATING ...............264/1.3


HOLSTERS
  DESIGN ............................D03/101+
  HANDGUN ...........................224/193
     FOR EITHER SIDE OF TORSO .......224/192
     LEATHER OR FLEXIBLE FABRIC .....224/911*
     METAL OR RIGID MATERIAL ........224/912*
     ROTATABLY OR SWINGABLY ATTACHED 224/198
     WITH CLOSURE FLAP ..............224/238
     WITH GUN POSITIONER ............224/243
  KNIFE, BAYONET, SWORD, ICE PICK ...224/232+
  SHOULDER HOLSTER ..................224/206

HOMATROPINE ......................... 546/131

HOMINY MILLS
  GRAIN HULLERS .....................99/600+
  SOLIDS COMMINUTION ................241

HOMOGENIZING
  AGITATOR ..........................366
  COLLOID MAKING ....................252/302+
  COMMINUTING SOLIDS ................241
  EQUIPMENT DESIGN ..................D07/377
  FOODS .............................99
  RESTRICTOR FOR ....................138/40+

HOMOKINETIC COUPLING ................ 464/904*

HOMOPOLAR DYNAMOELECTRIC MACHINES ... 310/178

HONES ............................... 51/211.H+

HONEY
  BEE CULTURE .......................449
  CENTRIFUGAL SEPARATOR .............210/361+
  MODIFIED OR ARTIFICIAL ............426/658+

!HONEYCOMB (SEE ARTICLE BY NAME)
  DUNNAGE ...........................410/121
  FOUNDATIONS .......................449/44+
  FRAMES ............................449/42+
  STOCK MATERIAL ....................428/116+
     METAL ..........................428/593
  STRUCTURE FOR CONTAINERS ..........493/966*