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CONTINSOUZA ETS
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CONTINSOUZA ETS
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Application filed by CONTINSOUZA ETSfiledCriticalCONTINSOUZA ETS
Application grantedgrantedCritical
Publication of FR22736EpublicationCriticalpatent/FR22736E/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
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR22736A1920-02-061920-02-06
Improvements to film camera shutters
ExpiredFR22736E
(en)