DIFF Subgroup
G02C 7/08 Auxiliary lenses; Arrangements for varying focal length
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Optical parts > Lenses; Lens systems > Auxiliary lenses; Arrangements for varying focal length
CPC:
Optical parts (characterised by the material G02B1/00) > Lenses; Lens systems > Auxiliary lenses; Arrangements for varying focal length
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
Navigate with arrow keys, Enter to open