Schaltung fuer Fernsprechanlagen mit Waehlerbetrieb,申请号DE1934M128761D-传众专利搜索

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发明名称	Schaltung fuer Fernsprechanlagen mit Waehlerbetrieb
摘要
申请公布号	DE671184(C)	申请公布日期	1939.02.01
申请号	DE1934M128761D	申请日期	1934.10.07
申请人	MIX & GENEST AKT.-GES.	发明人	HEYDUCK ALFRED
分类号	H04M3/38	主分类号	H04M3/38
代理机构		代理人
主权项
地址

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