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公开(公告)号：US3378716A
公开(公告)日：1968-04-16
申请号：US44510965
申请日：1965-04-02
Applicant: GEN ELECTRIC
Inventor： BRASWELL GARY J , JOLLY PRESTON L
CPC classification number: H01J21/36 , H01J5/20 , H01J5/44 , H01J19/28 , H01J19/36 , H01J19/74 , H01J21/065 , H01J2893/0013 , H01J2893/0027 , H01J2893/0037
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