IPC Subgroup
F24D 13/04 using electric heating of heat-transfer fluid in separate units of the system
Introduced: September 1968
Last revised: January 2006
Full Title
Electric heating systems > using electric heating of heat-transfer fluid in separate units of the system
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- HEATING; RANGES; VENTILATING
- Subclass:
- DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR