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IG Farbenindustrie AG
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IG Farbenindustrie AG
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Application filed by IG Farbenindustrie AGfiledCriticalIG Farbenindustrie AG
Application grantedgrantedCritical
Publication of FR830818ApublicationCriticalpatent/FR830818A/fr
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
G03B27/00—Photographic printing apparatus
G03B27/02—Exposure apparatus for contact printing
G03B27/14—Details
G03B27/16—Illumination arrangements, e.g. positioning of lamps, positioning of reflectors
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR830818D1936-12-141937-12-14Procédé et dispositifs pour le réglage automatique de machines opératrices de tout genre, au moyen d'une bande de réglage
ExpiredFR830818A
(fr)