Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Mills Novelty Co
Original Assignee
Mills Novelty Co
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Filing date
Publication date
Application filed by Mills Novelty CofiledCriticalMills Novelty Co
Application grantedgrantedCritical
Publication of FR558904ApublicationCriticalpatent/FR558904A/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
FR558904D1922-11-211922-11-21Perfectionnements aux phonogrames pour appareils reproducteurs de sons
ExpiredFR558904A
(fr)