IPC Subgroup
F25D 21/06 Removing frost
Introduced: September 1968
Last revised: January 2006
Full Title
Defrosting; Preventing frosting; Removing condensed or defrost water > Removing frost
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
- Subclass:
- REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
3 direct subcodes
Child Classifications
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- F25D 21/08 by electric heating
- F25D 21/1 by spraying with fluid
- F25D 21/12 by hot-fluid circulating system separate from the refrigerant system