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1.发明授权Electron gun assembly with long life annular cathode curvilinear electron flow 失效电子枪组件具有长寿命环形阴极曲线电子流
公开(公告)号：US3250936A
公开(公告)日：1966-05-10
申请号：US20597962
申请日：1962-06-28
Applicant: GEN ELECTRIC
Inventor： JAMES PUA
CPC classification number: H01J29/488 , H01J3/029
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