Schaltungsanordnung zur Bestimmung verschiedener Verkehrsrichtungen in Fernsprechanlagen,申请号DE1942M154412D-传众专利搜索

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发明名称	Schaltungsanordnung zur Bestimmung verschiedener Verkehrsrichtungen in Fernsprechanlagen
摘要
申请公布号	DE762975(C)	申请公布日期	1954.03.08
申请号	DE1942M154412D	申请日期	1942.06.08
申请人	SIEMENS & HALSKE A. G.	发明人	MATTERN ALFRED DIPL.-ING.;WEVERING HERMANN
分类号	H04Q3/00	主分类号	H04Q3/00
代理机构		代理人
主权项
地址

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