Perfectionnements aux systèmes de signalisation électrique à haute fréquence,申请号FRD785591-传众专利搜索

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发明名称	Perfectionnements aux systèmes de signalisation électrique à haute fréquence
摘要
申请公布号	FR785591(A)	申请公布日期	1935.08.13
申请号	FRD785591	申请日期	1934.05.05
申请人	LE MATERIEL TELEPHONIQUE SOCIETE ANONYME	发明人
分类号	H01Q3/32	主分类号	H01Q3/32
代理机构		代理人
主权项
地址

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