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发明名称
Electron emission control arrangement
摘要
申请公布号
US2052725(A)
申请公布日期
1936.09.01
申请号
US19320621772
申请日期
1932.07.11
申请人
RADIO CORPORATION OF AMERICA
发明人
ROBERTS WALTER VAN B.
分类号
H04B1/16
主分类号
H04B1/16
代理机构
代理人
主权项
地址
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