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发明名称
Dual type electron discharge device
摘要
申请公布号
US2477594(A)
申请公布日期
1949.08.02
申请号
US19460657414
申请日期
1946.03.27
申请人
FEDERAL TELEPHONE AND RADIO CORPORATION
发明人
GLAUBER JOHN J.
分类号
H01J21/06
主分类号
H01J21/06
代理机构
代理人
主权项
地址
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