DIFF Main Group
G03F 3/00 Colour separation; Correction of tonal value (photographic copying apparatus in general G03B)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Colour separation; Correction of tonal value
CPC: Colour separation; Correction of tonal value (photographic copying apparatus in general G03B)
Full Title
Full titles differ between systems:
IPC:
Colour separation; Correction of tonal value
CPC:
Colour separation; Correction of tonal value (photographic copying apparatus in general G03B)
Of 4 combined children, 3 exist in both systems.
1 codes exist only in IPC.
Child Classifications
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- G03F 3/10 Checking the colour or tonal value of separation negatives or positives +7 CPC IPC+CPC Available in IPC and CPC