Système de reproduction sonore,申请号FRD786228-传众专利搜索

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发明名称	Système de reproduction sonore
摘要
申请公布号	FR786228(A)	申请公布日期	1935.08.29
申请号	FRD786228	申请日期	1934.05.15
申请人		发明人	ASCHE ROBERT ERICH
分类号	H03G3/20	主分类号	H03G3/20
代理机构		代理人
主权项
地址

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