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发明名称
Limited-area cathode
摘要
申请公布号
US2570165(A)
申请公布日期
1951.10.02
申请号
US19490110575
申请日期
1949.08.16
申请人
RADIO CORPORATION OF AMERICA
发明人
SHEKELS HOWARD D.
分类号
H01J29/48
主分类号
H01J29/48
代理机构
代理人
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