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经营范围
发明名称
Improvements in or relating to apparatus for producing electric telegraph signals
摘要
申请公布号
GB733071(A)
申请公布日期
1955.07.06
申请号
GB19520005867
申请日期
1952.03.06
申请人
THE GENERAL ELECTRIC COMPANY LIMITED;ALAN JOHN BAYLISS;EDWARD ARTHUR RICHARD PEDDLE
发明人
分类号
H04L17/02
主分类号
H04L17/02
代理机构
代理人
主权项
地址
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