IPC Subgroup
G02C 11/06 Hearing aids
Introduced: September 1968
Last revised: January 2006
Full Title
Non-optical adjuncts; Attachment thereof > Hearing aids
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
Related Keywords
HEARING-AIDS combined with optical apparatus