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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Societe des Etablissements Gaumont
Original Assignee
Societe des Etablissements Gaumont
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Filing date
Publication date
Application filed by Societe des Etablissements GaumontfiledCriticalSociete des Etablissements Gaumont
Application grantedgrantedCritical
Publication of FR474282ApublicationCriticalpatent/FR474282A/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
G03B21/14—Details
G03B21/32—Details specially adapted for motion-picture projection
G03B21/43—Driving mechanisms
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR474282D1913-11-151913-11-15Dispositif perfectionné d'enroulement des bandes dans les appareils cinématographiques
ExpiredFR474282A
(fr)