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CH ET J ULLMANN SOC
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CH ET J ULLMANN SOC
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Publication of FR339687ApublicationCriticalpatent/FR339687A/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
FR339687D1904-01-181904-01-18Dispositif pour la transformation d'un phonographe à cylindres en un phonographe à disques
ExpiredFR339687A
(fr)