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Publication of FR856860ApublicationCriticalpatent/FR856860A/fr
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
G11B5/127—Structure or manufacture of heads, e.g. inductive
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Electromagnets
(AREA)
FR856860D1938-06-301939-06-24Perfectionnements aux têtes d'aimants pour l'enregistrement et la reproduction électromagnétiques des sons
ExpiredFR856860A
(fr)