Improvements in or relating to automatic or semi-automatic telephone or like exchange systems,申请号GB19350020621-传众专利搜索

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发明名称	Improvements in or relating to automatic or semi-automatic telephone or like exchange systems
摘要
申请公布号	GB460032(A)	申请公布日期	1937.01.19
申请号	GB19350020621	申请日期	1935.07.19
申请人	STANDARD TELEPHONES AND CABLES LIMITED;JOHN ROSEWELL HARDWICK	发明人
分类号	H04Q3/62	主分类号	H04Q3/62
代理机构		代理人
主权项
地址

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