IPC Subgroup
H01K 1/36 Seals between parts of vessel, e.g. between stem and envelope
Introduced: September 1968
Last revised: January 2006
Full Title
Details > Seals between parts of vessel, e.g. between stem and envelope
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC INCANDESCENT LAMPS