Schaltungsanordnung fuer Fernsprechanlagen,申请号DE1929J037974D-传众专利搜索

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发明名称	Schaltungsanordnung fuer Fernsprechanlagen
摘要
申请公布号	DE587788(C)	申请公布日期	1933.11.08
申请号	DE1929J037974D	申请日期	1929.05.07
申请人	STANDARD ELEKTRIZITAETS-GESELLSCHAFT A.-G.	发明人
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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