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A
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SECTION A — HUMAN NECESSITIES
B
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SECTION B — PERFORMING OPERATIONSTRANSPORTING
C
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SECTION C — CHEMISTRYMETALLURGY
D
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SECTION D — TEXTILESPAPER
E
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SECTION E — FIXED CONSTRUCTIONS
F
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SECTION F — MECHANICAL ENGINEERINGLIGHTINGHEATINGWEAPONSBLASTING
F01
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ENGINES OR PUMPS
F01
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MACHINES OR ENGINES IN GENERAL (combustion engines F02; machines for liquids F03, F04)ENGINE PLANTS IN GENERALSTEAM ENGINES
F02
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COMBUSTION ENGINES (cyclically operating valves therefor, lubricating, exhausting, or silencing engines F01)HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F03
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MACHINES OR ENGINES FOR LIQUIDS (for liquids and elastic fluids F01; positive-displacement machines for liquids F04)WIND, SPRING, OR WEIGHT MOTORSPRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
F04
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POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDSPUMPS FOR LIQUIDS OR ELASTIC FLUIDS (portable fire extinguishers with manually-operated pumps A62C 11/00, with power-driven pumps A62C 25/00; charging or scavenging combustion engines by pumps F02B; engine fuel-injection pumps F02M; ion pumps H01J 41/12; electrodynamic pumps H02K 44/02)
F15
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ENGINEERING IN GENERAL
F15
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FLUID-PRESSURE ACTUATORSHYDRAULICS OR PNEUMATICS IN GENERAL
F16
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ENGINEERING ELEMENTS OR UNITSGENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONSTHERMAL INSULATION IN GENERAL
F16B
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DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGESJOINTS OR JOINTING
F16C
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SHAFTSFLEXIBLE SHAFTSELEMENTS OF CRANKSHAFT MECHANISMSROTARY BODIES OTHER THAN GEARING ELEMENTSBEARINGS [5]
F16C 1/00
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Flexible shafts (flexible shafts in dental machines for boring or cutting A61C 1/18)Mechanical means for transmitting movement in a flexible sheathing
F16C 3/00
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Shafts (flexible shafts F16C 1/00; marine propeller shafts, paddle wheel shafts B63H 23/34)AxlesCranksEccentrics
F16C 5/00
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CrossheadsConstructions of connecting-rod heads or piston-rod connections rigid with crossheads (piston-rods, i.e. rods rigidly connected to the piston, F16J 7/00)
F16C 7/00
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Connecting-rods or like links pivoted at both ends (coupling-rods for locomotive driving-wheels B61C; inhibiting shift in gearing during unfavourable conditions F16H 61/16)Construction of connecting-rod heads (heads rigid with crossheads F16C 5/00)
F16C 9/00
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Bearings for crankshafts or connecting-rodsAttachment of connecting-rods (lubrication of connecting-rods in connection with crankshafts F16C 3/14; connections to crossheads F16C 5/00, to pistons F16J 1/14)
F16C 11/00
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PivotsPivotal connections (arrangements of steering linkage connections B62D 7/16)
F16C 13/00
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Rolls, drums, discs, or the like (guide rollers in feeding webs B65H 27/00; calender rolls, bearings therefor D21G 1/02; pulleys F16H 55/00; rotary drums or rollers for heat-exchange or heat-transfer apparatus F28F 5/02; special adaptations, see the relevant classes)Bearings or mountings therefor
F16C 13/02
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Bearings
F16C 13/04
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. . Bearings with only partial enclosure of the member to be borneBearings with local support at two or more points
F16C 13/06
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. . self-adjusting
F16C 15/00
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Construction of rotary bodies to resist centrifugal force (flywheels, correction weights F16F 15/30, F16F 15/32)
F16C 17/00
Bearings for rotary parts (F16C 9/00, F16C 13/02 take precedence; allowing for linear movement also F16C 31/00)
F16C 17/00
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Sliding-contact bearings (F16C 32/06 takes precedence; adjustable bearings F16C 23/00, F16C 25/00) [2]
F16C 19/00
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Bearings with rolling contact (adjustable bearings F16C 23/00, F16C 25/00)
F16C 21/00
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Combinations of sliding-contact bearings with ball or roller bearings (F16C 17/24, F16C 19/52 take precedence) [2]
F16C 23/00
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Bearings adjustable for aligning or positioning (F16C 27/00 takes precedence)
F16C 25/00
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Bearings adjustable for wear or play (F16C 27/00 takes precedence)
F16C 27/00
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Elastic or yielding bearings or bearing supports (shock-damping bearings for watches or clocks G04B 31/02)
F16C 29/00
Other bearings
F16C 29/00
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Bearings for parts moving only linearly (F16C 32/06 takes precedence; incorporated in flexible shafts F16C 1/28) [2]
F16C 31/00
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Bearings for parts which both rotate and move linearly
F16C 32/00
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Bearings not otherwise provided for
F16C 33/00
Details or accessories of bearings
F16C 33/00
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Parts of bearingsSpecial methods for making bearings or parts thereof (metal-working or like operations, see the relevant classes)
F16C 35/00
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Rigid support of bearing unitsHousings, e.g. caps, covers (F16C 23/00 takes precedence; elastic or yielding supports F16C 27/00)
F16C 37/00
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Cooling of bearings
F16C 39/00
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Relieving load on bearings
F16C 41/00
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Other accessories
F16C 43/00
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Assembling bearings
F16D
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COUPLINGS FOR TRANSMITTING ROTATIONCLUTCHESBRAKES [2]
F16F
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SPRINGSSHOCK-ABSORBERSMEANS FOR DAMPING VIBRATION
F16G
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BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSESCHAINSFITTINGS PREDOMINANTLY USED THEREFOR
F16H
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GEARING
F16J
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PISTONSCYLINDERSPRESSURE VESSELS IN GENERALSEALINGS
F16K
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VALVESTAPSCOCKSACTUATING-FLOATSDEVICES FOR VENTING OR AERATING
F16L
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PIPESJOINTS OR FITTINGS FOR PIPESSUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBINGMEANS FOR THERMAL INSULATION IN GENERAL
F16M
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FRAMES, CASINGS, OR BEDS, OF ENGINES OR OTHER MACHINES OR APPARATUS, NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERESTANDS OR SUPPORTS
F16N
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LUBRICATING
F16P
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SAFETY DEVICES IN GENERAL
F16S
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CONSTRUCTIONAL ELEMENTS IN GENERALSTRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
F16T
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STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
F17
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STORING OR DISTRIBUTING GASES OR LIQUIDS (water supply E03B)
F21
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LIGHTINGHEATING
F21
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LIGHTING (electric aspects or elements, see section H, e.g. electric light sources H01J, H01K, H05B)
F22
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STEAM GENERATION (chemical or physical apparatus for generating gases B01J; chemical generation of gas, e.g. under pressure, Section C; removal of combustion products or residues, e.g. cleaning of the combustion contaminated surfaces of tubes of boilers, F23J; generating combustion products of high pressure or high velocity F23R; water heaters not for steam generation F24H, F28; cleaning of internal or external surfaces of heat-transfer conduits, e.g. water tubes of boilers, F28G)
F23
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COMBUSTION APPARATUSCOMBUSTION PROCESSES
F24
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HEATINGRANGESVENTILATING (protecting plants by heating in gardens, orchards, or forests A01G 13/06; baking ovens and apparatus A21B; cooking devices other than ranges A47J; forging B21J, B21K; specially adapted for vehicles, see the relevant subclasses of classes B60-B64; combustion apparatus in general F23; drying F26B; ovens in general F27; electric heating elements or arrangements H05B)
F25
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REFRIGERATION OR COOLINGCOMBINED HEATING AND REFRIGERATION SYSTEMSHEAT PUMP SYSTEMSMANUFACTURE OR STORAGE OF ICELIQUEFACTION OR SOLIDIFICATION OF GASES
F26
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DRYING
F27
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FURNACESKILNSOVENSRETORTS (specially adapted for a purpose covered by a single other class and specifically mentioned in that class, see the class in question, e.g. bakery ovens A21B, glass melting furnaces C03B, coke or gas-making apparatus C10B, C10J, apparatus for cracking hydrocarbons C10G, blast furnaces C21B, converters for making steel C21C, furnaces for heat treatment of metal C21D; furnaces for electroslag or arc remelting of metals C22B 9/00; enamelling ovens C23D; combustion apparatus F23; electric heating H05B) [4]
F28
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HEAT EXCHANGE IN GENERAL (heat-transfer, heat-exchange or heat-storage materials C09K 5/00; arrangement or mounting of heat-exchangers in air-conditioning, air-humidification or ventilation F24F 13/30)
F41
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WEAPONSBLASTING
F41
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WEAPONS
F42
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AMMUNITIONBLASTING
F99
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SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION [2006.01]
G
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SECTION G — PHYSICS
H
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SECTION H — ELECTRICITY

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