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Publication of FR982008ApublicationCriticalpatent/FR982008A/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
G11B3/44—Styli, e.g. sapphire, diamond
G11B3/46—Constructions or forms ; Dispositions or mountings, e.g. attachment of point to shank
G11B3/48—Needles
FR982008D1943-05-281943-05-28Perfectionnements apportés aux dispositifs à aiguille du genre de ceux pour l'enregistrement ou la reproduction des sons
ExpiredFR982008A
(fr)
Armature pour appareil électro-magnétique, spécialement pour appareil électro-acoustique, destiné par exemple à l'enregistrement ou à la reproduction de pistes sonores