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发明名称
Transmitter for step-by-step telegraph systems
摘要
申请公布号
US2215802(A)
申请公布日期
1940.09.24
申请号
US19370182201
申请日期
1937.12.29
申请人
CREED AND COMPANY LIMITED
发明人
THOMPSON ALFRED EDWARD;SALMON REGINALD DENNIS
分类号
H04L17/04;H04L19/00
主分类号
H04L17/04
代理机构
代理人
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