Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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GRP D IND de la PHOTOGRAPHIE A
Original Assignee
GRP D IND de la PHOTOGRAPHIE A
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Filing date
Publication date
Application filed by GRP D IND de la PHOTOGRAPHIE AfiledCriticalGRP D IND de la PHOTOGRAPHIE A
Application grantedgrantedCritical
Publication of FR859650ApublicationCriticalpatent/FR859650A/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
G03B9/08—Shutters
G—PHYSICS
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)
FR859650D1939-05-201939-05-20Dispositif de commande et de contrôle à distance pour appareils photographiques automatiques
ExpiredFR859650A
(fr)
Support pour appareils photographiques comportant un dispositif de visée et de commande à distance et particulièrement applicable à la photographie aérienne