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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 GENERALENGINE PLANTS IN GENERALSTEAM ENGINES
F02
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COMBUSTION ENGINESHOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
F03
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MACHINES OR ENGINES FOR LIQUIDSWIND, 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
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
F17
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STORING OR DISTRIBUTING GASES OR LIQUIDS
F21
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LIGHTINGHEATING
F21
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LIGHTING
F21H
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INCANDESCENT MANTLESOTHER INCANDESCENT BODIES HEATED BY COMBUSTION (arrangements thereof F21V 36/00; burners F23D)
F21K
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LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
F21L
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LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION (burners F23D; electric aspects or elements, see section H, e.g. electric light sources H01J, H01K, H05B) [1, 7]
F21S
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NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF (burners F23D; electric aspects or elements, see section H, e.g. electric light sources H01J, H01K, H05B) [1, 7]
F21V
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FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOFSTRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR [1, 7]
F21V 1/00
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Shades for light sources
F21V 3/00
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GlobesBowlsCover glasses (with refracting properties F21V 5/00; with reflecting properties F21V 7/00)
F21V 5/00
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Refractors for light sources
F21V 7/00
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Reflectors for light sources
F21V 8/00
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Use of light guides, e.g. fibre optic devices, in lighting devices or systems (light guides per se, structural details of arrangements with other optical elements G02B 6/00) [4]
F21V 9/00
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Light filters (coloured shades F21V 1/00)Selection of luminescent materials for light screens (luminescent materials per seC09K 11/00; electroluminescent light sources per seH05B 33/00)
F21V 11/00
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Screens not covered by groups F21V 1/00, F21V 3/00, F21V 7/00 or F21V 9/00
F21V 13/00
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Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V 1/00-F21V 11/00 (changing the characteristics or distribution of the light emitted by adjustment of parts F21V 14/00) [1, 7]
F21V 14/00
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Changing the characteristics or distribution of the light emitted by adjustment of parts (reflectors with provision for adjusting the curvature F21V 7/16; light filters with provision for variation of colour or intensity F21V 9/10; screens using iris-type diaphragms F21V 11/10; adjustable mountings for lighting devices F21V 21/14) [7]
F21V 15/00
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Protecting lighting devices from damage (cooling or heating arrangements F21V 29/00; gas-tight or water-tight arrangements F21V 31/00)
F21V 17/00
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Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages (of light sources or light holders F21V 19/00; gas-tight or water-tight arrangements F21V 31/00)
F21V 17/02
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with provision for adjustment (F21V 17/04-F21V 17/08 take precedence; changing the characteristics or distribution of the light emitted by adjustment of parts F21V 14/00) [1, 7]
F21V 17/04
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onto or by the light source
F21V 17/06
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onto or by the lamp holder
F21V 17/08
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onto the supporting or suspending arrangements of the lighting device, e.g. power cords, standards [7]
F21V 17/10
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characterised by specific fastening means or way of fastening (F21V 17/02-F21V 17/08 take precedence) [7]
F21V 17/12
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. . by screwing [7]
F21V 17/14
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. . Bayonet-type fastening [7]
F21V 17/16
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. . by deformation of parts of the lighting deviceSnap action mounting [7]
F21V 17/18
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. . Latch-type fastening, e.g. with rotary action [7]
F21V 17/20
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. . by toggle-action levers [7]
F21V 19/00
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Fastening of light sources or lamp holders (fastening electric light source solely by the coupling device H01R 33/00)
F21V 21/00
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Supporting, suspending, or attaching arrangements for lighting devices (F21V 17/00, F21V 19/00 take precedence)Hand grips [1, 7]
F21V 23/00
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Arrangement of electric circuit elements in or on lighting devices
F21V 25/00
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Safety devices structurally associated with lighting devices (gas-tight or water-tight arrangements F21V 31/00)
F21V 27/00
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Cable-stowing arrangements structurally associated with lighting devices, e.g. reels
F21V 29/00
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Cooling or heating arrangements (reflectors specially adapted for cooling F21V 7/20; cooling of air-treatment systems with air-flow over lighting fixtures F24F 3/056; lighting fixtures combined with outlets for air-treatment systems F24F 13/078; cooling of projectors G03B 21/16) [1, 7]
F21V 31/00
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Gas-tight or water-tight arrangements
F21V 33/00
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Structural combinations of lighting devices with other articles, not otherwise provided for [1, 7]
F21V 35/00
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Candle holders
F21V 36/00
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Arrangements of mantles or other incandescent bodies on burners (attaching to lamp parts F21V 19/06)
F21V 37/00
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Details of lighting devices employing combustion as light source, not otherwise provided for [1, 7]
F21V 99/00
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Subject matter not provided for in other groups of this subclass [2006.01]
F21W
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INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS [7]
F21Y
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INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V, RELATING TO THE FORM OF THE LIGHT SOURCES [7]
F22
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STEAM GENERATION
F23
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COMBUSTION APPARATUSCOMBUSTION PROCESSES
F24
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HEATINGRANGESVENTILATING
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 [4]
F28
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HEAT EXCHANGE IN GENERAL
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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