IPC Subgroup
F28F 23/02 Arrangements for obtaining or maintaining same in a liquid state
Introduced: September 1968
Last revised: January 2006
Full Title
Features relating to the use of intermediate heat-exchange materials, e.g. selection of compositions > Arrangements for obtaining or maintaining same in a liquid state
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- HEAT EXCHANGE IN GENERAL
- Subclass:
- DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
Related Keywords
ANTIFREEZE MATERIALS