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发明名称
Electron tube
摘要
申请公布号
US2212645(A)
申请公布日期
1940.08.27
申请号
US19370145413
申请日期
1937.05.29
申请人
RADIO CORPORATION OF AMERICA
发明人
MORTON GEORGE A.
分类号
H01J43/02
主分类号
H01J43/02
代理机构
代理人
主权项
地址
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