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| SECTION F– MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING |
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| F 25 | REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES |
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| F 25 B | REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS (pumps, compressors F 04; use of heat pumps for domestic or space-heating or for domestic hot-water supply F 24 D; air-conditioning, air-humidification F 24 F; fluid heaters using heat pumps F 24 H) |
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| F 25 C | PRODUCTION, WORKING, STORING, OR DISTRIBUTION OF ICE (frozen sweets, including ice-cream, their production A 23 G 9/00; concentrating solutions by removing frozen solvents B 01 D 9/04; purification of water by freezing C 02 F 1/22; refrigeration machines, plants, or systems F 25 B; solidification of gases or gaseous mixtures F 25 J; freeze-drying F 26 B) |
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| F 25 D | REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS (refrigerated showcases A 47 F 3/04; thermally-insulated vessels for domestic use A 47 J 41/00; refrigerated vehicles, see the appropriate subclasses of classes B 60 to B 64; containers with thermal insulation in general B 65 D 81/38; thermally-insulated vessels for liquefied or solidified gases F 17 C; air-conditioning or air-humidification F 24 F; refrigeration machines, plants, or systems F 25 B; cooling of instruments or comparable apparatus without refrigeration G 12 B; cooling of engines or pumps, see the relevant classes) |
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| F 25 J | LIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT (cryogenic pumps F 04 B 37/08; gas storage vessels, gas-holders F 17; filling vessels with, or discharging from vessels, compressed, liquefied, or solidified gases F 17 C; refrigeration machines, plants, or systems F 25 B) |
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