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发明名称
Electron discharge device
摘要
申请公布号
US2721953(A)
申请公布日期
1955.10.25
申请号
US19500188041
申请日期
1950.10.02
申请人
JEROME ROTHSTEIN
发明人
ROTHSTEIN JEROME
分类号
H01J17/04;H01J25/00;H01J25/38
主分类号
H01J17/04
代理机构
代理人
主权项
地址
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