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Publication of FR573636ApublicationCriticalpatent/FR573636A/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
G11B3/58—Cleaning record carriers or styli, e.g. removing shavings or dust or electrostatic charges
G11B3/589—Cleaning record carriers or styli, e.g. removing shavings or dust or electrostatic charges before or after transducing operation
FR573636D1923-11-221923-11-22Produit pour l'entretien des disques de phonographes et pour leur remise en état lorsqu'ils sont usagés
ExpiredFR573636A
(fr)