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经营范围
发明名称
Traveling wave tube
摘要
申请公布号
US2863086(A)
申请公布日期
1958.12.02
申请号
US19540409043
申请日期
1954.02.09
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
COOK JOHN S.
分类号
H01J23/087
主分类号
H01J23/087
代理机构
代理人
主权项
地址
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