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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
Landscapes
Physics & Mathematics
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General Physics & Mathematics
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FR458931D1913-06-071913-06-07Procédé et dispositif pour la reproduction des négatifs photographiques
ExpiredFR458931A
(fr)
Dispositif pour l'enregistrement photographique des vibrations lumineuses d'une source de lumière influencée par des vibrations sonores et pour la reproduction de l'enregistrement au moyen d'une pile au sélénium