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BRUEDER PIVODA
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BRUEDER PIVODA
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Application filed by BRUEDER PIVODAfiledCriticalBRUEDER PIVODA
Application grantedgrantedCritical
Publication of FR366278ApublicationCriticalpatent/FR366278A/fr
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
G11B3/68—Record carriers
G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
FR366278D1906-05-161906-05-16Procédé pour la fabrication de disques et de cylindres en verre pour machines parlantes, gramophones, phonographes, etc.
ExpiredFR366278A
(fr)