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发明名称
Telephone repeater circuit
摘要
申请公布号
US2408072(A)
申请公布日期
1946.09.24
申请号
US19430516464
申请日期
1943.12.31
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
JOHNSON KENNETH S.
分类号
H04B3/36
主分类号
H04B3/36
代理机构
代理人
主权项
地址
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