IPC Subgroup
H05B 7/22 Indirect heating by arc discharge
Introduced: July 1974
Last revised: January 2006
Full Title
Heating by electric discharge > Heating by arc discharge > Indirect heating by arc discharge
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- Subclass:
- ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL