Perfectionnements aux outils pour instruments reproduisant le son, aux aiguilles de gramophone, etc.,申请号FRD678756-传众专利搜索

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发明名称	Perfectionnements aux outils pour instruments reproduisant le son, aux aiguilles de gramophone, etc.
摘要
申请公布号	FR678756(A)	申请公布日期	1930.04.04
申请号	FRD678756	申请日期	1929.07.19
申请人		发明人	WALTON ALFRED LEONARD
分类号	G11B3/48	主分类号	G11B3/48
代理机构		代理人
主权项
地址

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