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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Gallay SA
Original Assignee
Gallay SA
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Publication date
Application filed by Gallay SAfiledCriticalGallay SA
Application grantedgrantedCritical
Publication of FR579848ApublicationCriticalpatent/FR579848A/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
G03B21/54—Accessories
G03B21/64—Means for mounting individual pictures to be projected, e.g. frame for transparency
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR579848D1924-04-051924-04-05Boîte pour bobines de films
ExpiredFR579848A
(fr)