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Publication of FR606266ApublicationCriticalpatent/FR606266A/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
G11B3/02—Arrangements of heads
G11B3/04—Multiple, convertible, or alternative transducing arrangements
FR606266D1924-02-041925-02-04Procédé et dispositif pour augmenter la sonorité de morceaux de musique dans leur reproduction par appareil
ExpiredFR606266A
(fr)