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发明名称
Electron tube
摘要
申请公布号
US2301012(A)
申请公布日期
1942.11.03
申请号
US19410396415
申请日期
1941.06.03
申请人
BRUCE A. COFFIN
发明人
BRIGGS RICHARD S.
分类号
H01J19/42
主分类号
H01J19/42
代理机构
代理人
主权项
地址
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