FR774312A - Perfectionnements apportés aux dispositifs pour l'enregistrement, la reproduction et la copie de films cinématographiques et sonores
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Perfectionnements apportés aux dispositifs pour l'enregistrement, la reproduction et la copie de films cinématographiques et sonores
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Int Tobis Mij N V
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Int Tobis Mij N V
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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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FR774312D1934-06-071934-06-07Perfectionnements apportés aux dispositifs pour l'enregistrement, la reproduction et la copie de films cinématographiques et sonores
ExpiredFR774312A
(fr)
Perfectionnements apportés aux procédés et dispositifs photographiques, notamment à ceux pour l'enregistrement, la copie et la reproduction des phonogrammes