DIFF Subgroup Additional Only
G03B 2227/32 Projection printing apparatus, e.g. enlarging apparatus, copying camera
Full Title
Photographic printing apparatus > Projection printing apparatus, e.g. enlarging apparatus, copying camera
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.