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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Zeiss Ikon VEB
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Zeiss Ikon VEB
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Publication date
Application filed by Zeiss Ikon VEBfiledCriticalZeiss Ikon VEB
Application grantedgrantedCritical
Publication of FR1189900ApublicationCriticalpatent/FR1189900A/en
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
G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
G03B9/18—More than two members
G03B9/22—More than two members each moving in one direction to open and then in opposite direction to close, e.g. iris type
FR1189900D1956-12-201956-12-20
Device for reinforcing shutter sectors for photographic and cinematographic cameras
ExpiredFR1189900A
(en)