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公开(公告)号：US2822327A
公开(公告)日：1958-02-04
申请号：US49833255
申请日：1955-03-31
Applicant: GEN ELECTRIC
Inventor： HAMMESFAHR FREDERIC W , HATCH ROBERT L , LUCKHOWEC JOHN J
CPC classification number: H01J37/32018 , C01B13/11 , C01B2201/90 , H01T19/00
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