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经营范围
发明名称
Submarine cable amplifier and wave shaper
摘要
申请公布号
US2794853(A)
申请公布日期
1957.06.04
申请号
US19510229193
申请日期
1951.05.31
申请人
THE WESTERN UNION TELEGRAPH COMPANY
发明人
WELLS PHILIP H.;CRAMER CLIFFORD H.
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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