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JOHN-HENRY SMITH
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JOHN-HENRY SMITH
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Application grantedgrantedCritical
Publication of FR446572ApublicationCriticalpatent/FR446572A/en
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
G03C7/02—Direct bleach-out processes; Materials therefor; Preparing or processing such materials
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR446572D1911-10-041911-10-04
Process for obtaining color reproductions or images from the decolouration process using a compensating screen
ExpiredFR446572A
(en)
Process for obtaining screened or grained photographic clichés ranging from absolute black to absolute white without alteration of the intermediate colors