Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb und der Moeglichkeit, in niederwertigen Verbindungen belaestigende Teilnehmer zu fangen,申请号DE193701S7012D-传众专利搜索

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发明名称	Schaltungsanordnung fuer Fernsprechanlagen mit Waehlerbetrieb und der Moeglichkeit, in niederwertigen Verbindungen belaestigende Teilnehmer zu fangen
摘要
申请公布号	DE703009(C)	申请公布日期	1941.02.26
申请号	DE193701S7012D	申请日期	1937.04.28
申请人	SIEMENS & HALSKE AKT.-GES.	发明人	DREYER HANS
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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