Improvements relating to selecting switches of the kind used in automatic telephone systems,申请号GB19310024257-传众专利搜索

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发明名称	Improvements relating to selecting switches of the kind used in automatic telephone systems
摘要
申请公布号	GB388750(A)	申请公布日期	1933.02.28
申请号	GB19310024257	申请日期	1931.08.28
申请人	SIEMENS BROTHERS & CO. LIMITED;DOUGLAS LESLIE	发明人
分类号	H01H63/02	主分类号	H01H63/02
代理机构		代理人
主权项
地址

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