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Publication of FR1172217ApublicationCriticalpatent/FR1172217A/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
G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
G03B42/021—Apparatus for direct X-ray cinematography
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FR1172217D1956-02-061957-02-06Dispositif d'entraînement des pellicules dans une caméra à miroir
ExpiredFR1172217A
(fr)
Dispositif de contrôle du fonctionnement synchrone d'obtuateurs photographiques, enparticulier d'obturateurs de chambres noires de mesure semblables à celles des théodolites cinématographiques connus
Dispositif d'enclenchement sélectif pour l'entraînement ou la marche à vide d'engrenages, notamment dans des appareils caméras, châssis photographiques et cinématographiques, et appareils analogues