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发明名称
Electron discharge device
摘要
申请公布号
US2391780(A)
申请公布日期
1945.12.25
申请号
US19430506035
申请日期
1943.10.13
申请人
RADIO CORPORATION
发明人
HILLIER JAMES
分类号
H01J37/067
主分类号
H01J37/067
代理机构
代理人
主权项
地址
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