FR719351A - Perfectionnements apportés aux procédés et dispositifs pour l'obtention de films cinématographiques étroits ou de dimensions réduites
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Perfectionnements apportés aux procédés et dispositifs pour l'obtention de films cinématographiques étroits ou de dimensions réduites
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KUCHENMEISTER S INTERNATIONALE
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KUCHENMEISTER S INTERNATIONALE
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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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General Physics & Mathematics
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FR719351D1930-05-171931-05-16Perfectionnements apportés aux procédés et dispositifs pour l'obtention de films cinématographiques étroits ou de dimensions réduites
ExpiredFR719351A
(fr)