Schaltungsanordnung fuer den Fernvermittlungsverkehr in mit Verstaerkern betriebenenFernsprechanlagen,申请号DE1926S073942D-传众专利搜索

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发明名称	Schaltungsanordnung fuer den Fernvermittlungsverkehr in mit Verstaerkern betriebenenFernsprechanlagen
摘要
申请公布号	DE567280(C)	申请公布日期	1932.12.31
申请号	DE1926S073942D	申请日期	1926.03.31
申请人	SIEMENS & HALSKE AKT.-GES.	发明人	DEUTSCHMANN DR. WALTER
分类号	H04M3/40	主分类号	H04M3/40
代理机构		代理人
主权项
地址

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