Réseaux à impédance négative,申请号FRD864127-传众专利搜索

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发明名称	Réseaux à impédance négative
摘要
申请公布号	FR864127(A)	申请公布日期	1941.04.19
申请号	FRD864127	申请日期	1940.03.16
申请人	LIGNES TELEGRAPHIQUES ET TELEPHONIQUES	发明人
分类号	H04B3/16	主分类号	H04B3/16
代理机构		代理人
主权项
地址

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