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经营范围
发明名称
Electron beam tube
摘要
申请公布号
US2293417(A)
申请公布日期
1942.08.18
申请号
US19400347835
申请日期
1940.07.27
申请人
RADIO CORPORATION
发明人
THOMPSON HARRY C.
分类号
H01J43/02
主分类号
H01J43/02
代理机构
代理人
主权项
地址
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