Improvements in or relating to automatic or semi-automatic telephone exchange systems,申请号GB19360015231-传众专利搜索

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发明名称	Improvements in or relating to automatic or semi-automatic telephone exchange systems
摘要
申请公布号	GB466986(A)	申请公布日期	1937.06.09
申请号	GB19360015231	申请日期	1936.05.29
申请人	WESTERN ELECTRIC COMPANY INCORPORATED	发明人
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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