IPC Subgroup
H01K 1/26 Screens; Filters
Introduced: September 1968
Last revised: January 2006
Full Title
Details > Screens; Filters
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC INCANDESCENT LAMPS
Related Keywords
FILTER(S) in electric incandescent lampsSCREEN(S) in electric incandescent lamps