IPC Main Group
G02C 9/00 Attaching auxiliary optical parts
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
2 direct subcodes
Child Classifications
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