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发明名称
Telegraph signal regenerator
摘要
申请公布号
US2252380(A)
申请公布日期
1941.08.12
申请号
US19400321398
申请日期
1940.02.29
申请人
RADIO CORPORATION
发明人
KAHN ALFRED
分类号
H04L25/24
主分类号
H04L25/24
代理机构
代理人
主权项
地址
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