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Publication of FR794476ApublicationCriticalpatent/FR794476A/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
G03B41/00—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor
G03B41/02—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film
G03B41/04—Special techniques not covered by groups G03B31/00 - G03B39/00; Apparatus therefor using non-intermittently running film with optical compensator
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FR794476D1935-03-211935-08-30Dispositif condenseur pour l'éclairage des films cinématographiques
ExpiredFR794476A
(fr)