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HENRI OUDET
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HENRI OUDET
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Application filed by HENRI OUDETfiledCriticalHENRI OUDET
Application grantedgrantedCritical
Publication of FR335330ApublicationCriticalpatent/FR335330A/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
G03B9/00—Exposure-making shutters; Diaphragms
G03B9/58—Means for varying duration of "open" period of shutter
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR335330D1903-08-201903-08-20Système de déclencheur automatique d'obturateur d'appareils photographiques
ExpiredFR335330A
(fr)