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Symbol IPC-Stellen auswählen Titel
A
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HUMAN NECESSITIES
B
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PERFORMING OPERATIONSTRANSPORTING
C
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CHEMISTRYMETALLURGY
D
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TEXTILESPAPER
E
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FIXED CONSTRUCTIONS
F
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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
F22
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STEAM GENERATION
F23
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COMBUSTION APPARATUSCOMBUSTION PROCESSES
F24
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HEATINGRANGESVENTILATING
F24B
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DOMESTIC STOVES OR RANGES FOR SOLID FUELS  (for solid fuels in combination with gaseous fuels, liquid fuels or other kinds of energy supply F24C 1/02)IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES [6]
F24C
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DOMESTIC STOVES OR RANGES (exclusively for solid fuels F24B)DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
F24D
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DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMSDOMESTIC HOT-WATER SUPPLY SYSTEMSELEMENTS OR COMPONENTS THEREFOR (using steam or condensate extracted or exhausted from steam engine plants for heating purposes F01K 17/02)
F24F
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AIR-CONDITIONINGAIR-HUMIDIFICATIONVENTILATIONUSE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B 15/00; vertical ducts for carrying away waste gases from buildings E04F 17/02; tops for chimneys or ventilating shafts, terminals for flues F23L 17/02)
F24H
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FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL  (steam generation F22)
F24S
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SOLAR HEAT COLLECTORSSOLAR HEAT SYSTEMS (for producing mechanical power from solar energy F03G 6/00) [2018.01]
F24S 10/00
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Solar heat collectors using working fluids [2018.01]
F24S 10/10
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the working fluids forming pools or ponds [2018.01]
F24S 10/13
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. . Salt-gradient ponds [2018.01]
F24S 10/17
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. . using covers or floating solar absorbing elements [2018.01]
F24S 10/20
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having circuits for two or more working fluids (with means for exchanging heat between two or more fluids F24S 10/30) [2018.01]
F24S 10/25
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having two or more passages for the same working fluid layered in the direction of solar rays, e.g. having upper circulation channels connected with lower circulation channels [2018.01]
F24S 10/30
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with means for exchanging heat between two or more working fluids [2018.01]
F24S 10/40
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in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar heat collectors [2018.01]
F24S 10/50
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the working fluids being conveyed between plates [2018.01]
F24S 10/55
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. . with enlarged surfaces, e.g. with protrusions or corrugations  (collectors comprising porous materials or permeable masses directly contacting the working fluids F24S 10/80) [2018.01]
F24S 10/60
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the working fluids trickling freely over absorbing elements [2018.01]
F24S 10/70
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the working fluids being conveyed through tubular absorbing conduits [2018.01]
F24S 10/75
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. . with enlarged surfaces, e.g. with protrusions or corrugations (collectors comprising porous material or permeable masses directly contacting the working fluids F24S 10/80) [2018.01]
F24S 10/80
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comprising porous material or permeable masses directly contacting the working fluids  (for conveying liquefied working fluid from evaporator sections to condenser sections with capillary force F24S 10/95) [2018.01]
F24S 10/90
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using internal thermosiphonic circulation [2018.01]
F24S 10/95
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. . having evaporator sections and condenser sections, e.g. heat pipes [2018.01]
F24S 20/00
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Solar heat collectors specially adapted for particular uses or environments [2018.01]
F24S 21/00
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Solar heat collectors not provided for in groups F24S 10/00-F24S 20/00 [2018.01]
F24S 23/00
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Arrangements for concentrating solar rays for solar heat collectors [2018.01]
F24S 25/00
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Arrangement of stationary mountings or supports for solar heat collector modules [2018.01]
F24S 30/00
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Arrangements for moving or orienting solar heat collector modules [2018.01]
F24S 40/00
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Safety or protection arrangements of solar heat collectorsPreventing malfunction of solar heat collectors (control arrangements F24S 50/00) [2018.01]
F24S 50/00
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Arrangements for controlling solar heat collectors [2018.01]
F24S 60/00
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Arrangements for storing heat collected by solar heat collectors (in working fluids forming pools or ponds F24S 10/10) [2018.01]
F24S 70/00
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Details of absorbing elements [2018.01]
F24S 80/00
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Details, accessories or component parts of solar heat collectors not provided for in groups F24S 10/00-F24S 70/00 [2018.01]
F24S 90/00
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Solar heat systems not otherwise provided for [2018.01]
F24T
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GEOTHERMAL COLLECTORSGEOTHERMAL SYSTEMS [2018.01]
F24V
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COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR [2018.01]
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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FURNACESKILNS, OVENS OR RETORTS [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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PHYSICS
H
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ELECTRICITY

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