CPC Main Group
G02C 11/00 Non-optical adjuncts; Attachment thereof (G02C7/16 takes precedence)
6 direct subcodes
Child Classifications
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- G02C 11/02 Ornaments, e.g. exchangeable
- G02C 11/04 Illuminating means
- G02C 11/06 Hearing aids (construction of electric hearing aids H04R25/00)
- G02C 11/08 Anti-misting means, e.g. ventilating, heating (H05B3/84 takes precedence); Wipers