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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CHARLES-FRANCOIS DUSSAUD
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CHARLES-FRANCOIS DUSSAUD
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Filing date
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Application filed by CHARLES-FRANCOIS DUSSAUDfiledCriticalCHARLES-FRANCOIS DUSSAUD
Application grantedgrantedCritical
Publication of FR13429EpublicationCriticalpatent/FR13429E/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
G03B21/00—Projectors or projection-type viewers; Accessories therefor
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR13429D1910-10-211910-11-18Système de commutateur pour projections
ExpiredFR13429E
(fr)