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发明名称
Electron discharge device system
摘要
申请公布号
US2300052(A)
申请公布日期
1942.10.27
申请号
US19400333279
申请日期
1940.05.04
申请人
RADIO CORPORATION
发明人
LINDENBLAD NILS E.
分类号
H01J25/04;H01J25/38
主分类号
H01J25/04
代理机构
代理人
主权项
地址
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