IPC Subgroup
G03F 3/02 by retouching
Introduced: September 1968
Last revised: January 2006
Full Title
Colour separation; Correction of tonal value > by retouching
Classification Context
- Section:
- PHYSICS
- Class:
- PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- Subclass:
- PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR