IPC Subgroup
G02C 9/02 by hinging
Introduced: September 1968
Last revised: January 2006
Full Title
Attaching auxiliary optical parts > by hinging
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES