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发明名称
Improvements in or relating to electric telegraph systems
摘要
申请公布号
GB864728(A)
申请公布日期
1961.04.06
申请号
GB19580018515
申请日期
1958.06.10
申请人
THE GENERAL ELECTRIC COMPANY LIMITED;GEORGE ANGUS GIBSON
发明人
分类号
H04L12/00
主分类号
H04L12/00
代理机构
代理人
主权项
地址
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