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VISIONTONE TALKING PICTURES LT
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VISIONTONE TALKING PICTURES LT
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Application filed by VISIONTONE TALKING PICTURES LTfiledCriticalVISIONTONE TALKING PICTURES LT
Application grantedgrantedCritical
Publication of FR709822ApublicationCriticalpatent/FR709822A/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
G03B1/00—Film strip handling
G03B1/56—Threading; Loop forming
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR709822D1930-07-081931-01-14Perfectionnements aux appareils cinématographiques
ExpiredFR709822A
(fr)