Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EUSTACHY BIALOBORSKI
Original Assignee
EUSTACHY BIALOBORSKI
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Filing date
Publication date
Application filed by EUSTACHY BIALOBORSKIfiledCriticalEUSTACHY BIALOBORSKI
Application grantedgrantedCritical
Publication of FR451005ApublicationCriticalpatent/FR451005A/fr
G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
FR451005D1912-04-031912-11-25Appareil à enregistrer et à reproduire des ondes acoustiques
ExpiredFR451005A
(fr)
Appareil destiné à déterminer la direction des ondes sonores et plus généralement de toutes ondes susceptibles d'etre transformées en ondes sonores d'intensité proportionnelle
Appareil destiné à déterminer la direction des ondes sonores et plus généralement de toutes ondes susceptibles d'etre transformées en ondes sonores d'intensité proportionnelle