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Int Tobis Mij N V
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Int Tobis Mij N V
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Publication of FR801698ApublicationCriticalpatent/FR801698A/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
FR801698D1935-02-041936-02-04Procédé et dispositif pour l'enregistrement et la reproduction de vibrations sonores suivant le procédé à aimantation
ExpiredFR801698A
(fr)