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发明名称
Telegraph system
摘要
申请公布号
US2618699(A)
申请公布日期
1952.11.18
申请号
US19470782881
申请日期
1947.10.29
申请人
BRITISH TELECOMMUNICATIONS RESEARCH LIMITED
发明人
DAIN GORDON TAYLOR
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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