Réglage du niveau de transmission,申请号FRD851270-传众专利搜索

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发明名称	Réglage du niveau de transmission
摘要
申请公布号	FR851270(A)	申请公布日期	1940.01.05
申请号	FRD851270	申请日期	1939.03.07
申请人	LIGNES TELEGRAPHIQUES ET TELEPHONIQUES	发明人
分类号	H04B3/10	主分类号	H04B3/10
代理机构		代理人
主权项
地址

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