Selector repeater for telephone systems,申请号US19510263909-传众专利搜索

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发明名称	Selector repeater for telephone systems
摘要
申请公布号	US2706747(A)	申请公布日期	1955.04.19
申请号	US19510263909	申请日期	1951.12.28
申请人	STROMBERG-CARLSON COMPANY	发明人	KESSLER FRANK
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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