Selector switch in automatic telephone systems,申请号US19470728184-传众专利搜索

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发明名称	Selector switch in automatic telephone systems
摘要
申请公布号	US2529402(A)	申请公布日期	1950.11.07
申请号	US19470728184	申请日期	1947.02.12
申请人	AUTOMATIC ELECTRIC LABORATORIES, INC.	发明人	LOMAX CLARENCE E.
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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