DIFF Subgroup
G02B 27/0037 Full Title
Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
G02B 27/0037 Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.