Rotary type selector switch for automatic telephone systems,申请号US19460640260-传众专利搜索

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发明名称	Rotary type selector switch for automatic telephone systems
摘要
申请公布号	US2416109(A)	申请公布日期	1947.02.18
申请号	US19460640260	申请日期	1946.01.10
申请人	SIEMENS BROTHERS & CO. LIMITED	发明人	LONG DOUGLAS PERCY
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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