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FILOGRAPH PARENT Co Ltd
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FILOGRAPH PARENT Co Ltd
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Application filed by FILOGRAPH PARENT Co LtdfiledCriticalFILOGRAPH PARENT Co Ltd
Application grantedgrantedCritical
Publication of FR645623ApublicationCriticalpatent/FR645623A/fr
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
G11B25/10—Apparatus capable of using record carriers defined in more than one of the sub-groups G11B25/02 - G11B25/08; Adaptor devices therefor
FR645623D1926-12-131927-12-13Perfectionnements aux appareils d'enregistrement et de reproduction du son
ExpiredFR645623A
(fr)
Perfectionnement aux vibrateurs commandés électriquement tels par exemple que les dispositifs de transmission, de reproduction et d'enregistrement du son