Perfectionnements aux circuits détecteurs de rapport,申请号FRD987294-传众专利搜索

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发明名称	Perfectionnements aux circuits détecteurs de rapport
摘要
申请公布号	FR987294(A)	申请公布日期	1951.08.10
申请号	FRD987294	申请日期	1949.05.25
申请人	SYLVANIA ELECTRIC PRODUCTS INC.	发明人
分类号	H03D3/10	主分类号	H03D3/10
代理机构		代理人
主权项
地址

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