Dispositif d'enregistrement sonore,申请号FRD993343-传众专利搜索

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法人/股东/高管

发明名称	Dispositif d'enregistrement sonore
摘要
申请公布号	FR993343(A)	申请公布日期	1951.10.30
申请号	FRD993343	申请日期	1949.08.16
申请人	WESTERN ELECTRIC COMPANY, INCORPORATED	发明人
分类号	G11B7/00	主分类号	G11B7/00
代理机构		代理人
主权项
地址

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