IPC Main Group
H01K 13/00 Lamps having an incandescent body which is substantially non-conductive until heated, e.g. Nernst lamp
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC INCANDESCENT LAMPS
Related Keywords
NERNST[-lamps]
1 direct subcode
Child Classifications
Navigate with arrow keys, Enter to open
- H01K 13/02 Heating arrangements