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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Spicers Ltd
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Spicers Ltd
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Application filed by Spicers LtdfiledCriticalSpicers Ltd
Application grantedgrantedCritical
Publication of FR731724ApublicationCriticalpatent/FR731724A/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
G03B31/00—Associated working of cameras or projectors with sound-recording or sound-reproducing means
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Physics & Mathematics
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General Physics & Mathematics
(AREA)
FR731724D1931-03-131932-02-23Perfectionnements aux appareils pour l'obtention de films cinématographiques avec enregistrement sonore combiné
ExpiredFR731724A
(fr)
Perfectionnements apportés ou relatifs aux projecteurs cinématographiques et aux appareils reproducteurs de sons pour films combinés cinématographiques et sonores