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发明名称
Electron discharge device
摘要
申请公布号
US2501196(A)
申请公布日期
1950.03.21
申请号
US19450583802
申请日期
1945.03.20
申请人
RAYTHEON MANUFACTURING COMPANY
发明人
SPENCER PERCY L.
分类号
H01J23/213
主分类号
H01J23/213
代理机构
代理人
主权项
地址
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