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发明名称
Electron tube
摘要
申请公布号
US2131923(A)
申请公布日期
1938.10.04
申请号
US19360092702
申请日期
1936.07.27
申请人
RADIO CORPORATION OF AMERICA
发明人
THOMAS ADOLPH A.
分类号
H01J5/12;H01J5/24;H01K1/28
主分类号
H01J5/12
代理机构
代理人
主权项
地址
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