DIFF Subgroup
G03G 15/04045 Full Title
Apparatus for electrographic processes using a charge pattern (G03G16/00, G03G17/00 take precedence) > for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.