Perfectionnements apportés aux pick-up électrodynamiques,申请号FRD895946-传众专利搜索

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发明名称	Perfectionnements apportés aux pick-up électrodynamiques
摘要
申请公布号	FR895946(A)	申请公布日期	1945.02.07
申请号	FRD895946	申请日期	1943.03.18
申请人		发明人	BEALEM MARCEL
分类号	H04R9/12	主分类号	H04R9/12
代理机构		代理人
主权项
地址

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