FR878036A - Procédé pour la production de films sonores et de films à image et à son, contenant des pistes sonores à argent et à colorants
- Google Patents
Procédé pour la production de films sonores et de films à image et à son, contenant des pistes sonores à argent et à colorants
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IG Farbenindustrie AG
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IG Farbenindustrie AG
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Publication of FR878036ApublicationCriticalpatent/FR878036A/fr
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
G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
G03C5/12—Cinematrographic processes of taking pictures or printing
G03C5/14—Cinematrographic processes of taking pictures or printing combined with sound-recording
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Physics & Mathematics
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General Physics & Mathematics
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FR878036D1940-12-271941-12-26Procédé pour la production de films sonores et de films à image et à son, contenant des pistes sonores à argent et à colorants
ExpiredFR878036A
(fr)