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Manufactures Bebes Ysuar S A
Original Assignee
Manufactures Bebes Ysuar S A
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Publication date
Application filed by Manufactures Bebes Ysuar S AfiledCriticalManufactures Bebes Ysuar S A
Application grantedgrantedCritical
Publication of FR774305ApublicationCriticalpatent/FR774305A/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
G03B21/06—Projectors or projection-type viewers; Accessories therefor affording only episcopic projection
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR774305D1933-06-131934-06-07Procédé pour la fabrication de cinématographes à réflexion
ExpiredFR774305A
(fr)