Nouveau système des phonographes,申请号FRD691362-传众专利搜索

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发明名称	Nouveau système des phonographes
摘要
申请公布号	FR691362(A)	申请公布日期	1930.10.21
申请号	FRD691362	申请日期	1930.01.13
申请人		发明人	KARAVODINE NICOLAS DE
分类号	G11B25/04	主分类号	G11B25/04
代理机构		代理人
主权项
地址

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