DIFF Subgroup
G03C 11/22 Preparing plates or films for the manufacture of photographic negatives by non-photographic processes
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Auxiliary processes in photography > Preparing plates or films for the manufacture of photographic negatives by non-photographic processes
CPC:
Auxiliary processes in photography (characterised by the apparatus used G03D15/00) > Preparing plates or films for the manufacture of photographic negatives by non-photographic processes
No child classifications to compare. This is a leaf node in both IPC and CPC.