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发明名称
Improvements in and relating to high-speed signalling devices
摘要
申请公布号
GB592032(A)
申请公布日期
1947.09.05
申请号
GB19440000003
申请日期
1944.01.01
申请人
LESLIE THOMAS ARMAN;PHILIP ROY HUTTON-PENMAN;PARMEKO LIMITED
发明人
分类号
H04L25/24
主分类号
H04L25/24
代理机构
代理人
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地址
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