Improvements in or relating to automatic supervisory arrangements in telecommunication systems and apparatus therefor,申请号GB19480026465-传众专利搜索

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发明名称	Improvements in or relating to automatic supervisory arrangements in telecommunication systems and apparatus therefor
摘要
申请公布号	GB654016(A)	申请公布日期	1951.05.30
申请号	GB19480026465	申请日期	1948.10.11
申请人	THE GENERAL ELECTRIC COMPANY LIMITED;JOHN JAMES EDWIN ASPIN	发明人
分类号	H04B7/155	主分类号	H04B7/155
代理机构		代理人
主权项
地址

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