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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COLUMBIA GRAPHOPHONE Co
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COLUMBIA GRAPHOPHONE Co
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Publication date
Application filed by COLUMBIA GRAPHOPHONE CofiledCriticalCOLUMBIA GRAPHOPHONE Co
Application grantedgrantedCritical
Publication of FR593192ApublicationCriticalpatent/FR593192A/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
FR593192D1924-04-141925-02-11Perfectionnements dans les montures de bras acoustiques pour phonographes et autres machines analogues
ExpiredFR593192A
(fr)