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RELIEPHOGRAPHIE
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RELIEPHOGRAPHIE
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Application filed by RELIEPHOGRAPHIEfiledCriticalRELIEPHOGRAPHIE
Application grantedgrantedCritical
Publication of FR944253ApublicationCriticalpatent/FR944253A/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
G03B9/28—Roller blind or flexible plate
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR944253D1943-02-261943-02-26Obturateur à fente pour appareils photographiques
ExpiredFR944253A
(fr)