Perfectionnements aux pick-ups de gramophone,申请号FRD1137216-传众专利搜索

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发明名称	Perfectionnements aux pick-ups de gramophone
摘要
申请公布号	FR1137216(A)	申请公布日期	1957.05.27
申请号	FRD1137216	申请日期	1955.12.13
申请人	COSMOCORD LIMITED	发明人
分类号	H04R17/06	主分类号	H04R17/06
代理机构		代理人
主权项
地址

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