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发明名称
Transmission control circuit
摘要
申请公布号
US1840015(A)
申请公布日期
1932.01.05
申请号
US19300483784
申请日期
1930.09.23
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
BJORNSON BJORN G.
分类号
H04B3/20
主分类号
H04B3/20
代理机构
代理人
主权项
地址
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