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G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
G03F3/00—Colour separation; Correction of tonal value
G03F3/02—Colour separation; Correction of tonal value by retouching
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FR751791D1932-03-051933-03-03Procédé pour la fabrication de planches d'impression en couleurs naturelles pour l'impression polychrome
ExpiredFR751791A
(fr)
Procédé pour l'obtention d'images en couleurs naturelles à l'aide de trames lignées ou d'autres trames polychromes régulières pour prises de vues et trames colorées pour le tirage