IPC Subgroup
H01K 9/04 with built-in manually-operated switch
Introduced: September 1968
Last revised: January 2006
Full Title
Lamps having two or more incandescent bodies separately heated > to provide substitution in the event of failure of one of the bodies > with built-in manually-operated switch
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC INCANDESCENT LAMPS