IPC Subgroup
H01K 3/26 Closing of vessels
Introduced: September 1968
Last revised: January 2006
Full Title
Apparatus or processes adapted to the manufacture, installing, removal or maintenance of incandescent lamps or parts thereof > Closing of vessels
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC INCANDESCENT LAMPS