IPC Subgroup
F25D 17/04 for circulating gas, e.g. by natural convection
Introduced: September 1968
Last revised: January 2006
Full Title
Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces > for circulating gas, e.g. by natural convection
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
1 direct subcode
Child Classifications
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- F25D 17/06 by forced circulation