Perfectionnements aux systèmes de circuits à résistance négative,申请号FRD853083-传众专利搜索

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发明名称	Perfectionnements aux systèmes de circuits à résistance négative
摘要
申请公布号	FR853083(A)	申请公布日期	1940.03.09
申请号	FRD853083	申请日期	1939.04.14
申请人	MARCONI'S WIRELESS TELEGRAPH COMPANY LIMITED	发明人
分类号	H03B5/18	主分类号	H03B5/18
代理机构		代理人
主权项
地址

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