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发明名称
Telegraph code signal transmitter
摘要
申请公布号
US2726281(A)
申请公布日期
1955.12.06
申请号
US19520295473
申请日期
1952.06.25
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
HANLEY FRANK HAROLD
分类号
H04L12/06;H04L12/26;H04L25/04
主分类号
H04L12/06
代理机构
代理人
主权项
地址
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