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Application filed by Schuhler AndrefiledCriticalSchuhler Andre
Publication of CH299732ApublicationCriticalpatent/CH299732A/fr
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
G03F5/00—Screening processes; Screens therefor
G03F5/20—Screening processes; Screens therefor using screens for gravure printing
CH299732D1950-11-021951-10-25Procédé d'impression de caractères en héliogravure et matrice de caractère pour la mise en oeuvre de ce procédé.
CH299732A
(fr)