IPC Subgroup
G02C 7/16 Shades, shields; Obturators, e.g. with pinhole, with slot
Introduced: September 1968
Last revised: January 2006
Full Title
Optical parts > Shades, shields; Obturators, e.g. with pinhole, with slot
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
Related Keywords
OBTURATORS for spectacles