IPC Subgroup
F25B 21/02 using Peltier effect; using Nernst-Ettinghausen effect
Introduced: September 1968
Last revised: January 2006
Full Title
Machines, plants or systems, using electric or magnetic effects > using Peltier effect; using Nernst-Ettinghausen effect
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:
- REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
Related Keywords
machines, plant or systems using PELTIERrefrigeration machines using PELTIER
1 direct subcode
Child Classifications
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- F25B 21/04 reversible