G02C 7/081 — IPC vs CPC Diff | Patent Classification Explorer

DIFF Subgroup

G02C 7/081

Full Title

Optical parts (characterised by the material G02B1/00) > Lenses; Lens systems > Auxiliary lenses; Arrangements for varying focal length

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

This code exists only in CPC.

Diff view requires codes present in both systems.