Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb,申请号DE1925S071151D-传众专利搜索

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发明名称	Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb
摘要
申请公布号	DE493251(C)	申请公布日期	1930.03.11
申请号	DE1925S071151D	申请日期	1925.08.16
申请人	SIEMENS & HALSKE AKT.-GES.	发明人	KROLL WALTER
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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