Perfectionnements aux appareils d'enregistrement et de reproduction du son par fil magnétique,申请号FRD1034417-传众专利搜索

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发明名称	Perfectionnements aux appareils d'enregistrement et de reproduction du son par fil magnétique
摘要
申请公布号	FR1034417(A)	申请公布日期	1953.07.23
申请号	FRD1034417	申请日期	1951.03.24
申请人		发明人	BAR SYLVIO
分类号	G11B15/29	主分类号	G11B15/29
代理机构		代理人
主权项
地址

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