IPC Subgroup
H01K 7/02 for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
Introduced: September 1968
Last revised: January 2006
Full Title
Lamps for purposes other than general lighting > for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC INCANDESCENT LAMPS