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经营范围
发明名称
Electron discharge device and associated circuits
摘要
申请公布号
US2578458(A)
申请公布日期
1951.12.11
申请号
US19490096056
申请日期
1949.05.28
申请人
RADIO CORPORATION OF AMERICA
发明人
THOMPSON HARRY C.
分类号
H03B19/12
主分类号
H03B19/12
代理机构
代理人
主权项
地址
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