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Harrison Technologies Inc
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Harrison Technologies Inc
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Application filed by Harrison Technologies IncfiledCriticalHarrison Technologies Inc
Application grantedgrantedCritical
Publication of FR487582ApublicationCriticalpatent/FR487582A/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
(AREA)
General Physics & Mathematics
(AREA)
FR487582D1917-11-141917-11-14Mécanisme de synchronisme pour dispositifs de vues animées et reproducteurs de sons
ExpiredFR487582A
(fr)