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公开(公告)号：US2429287A
公开(公告)日：1947-10-21
申请号：US45143442
申请日：1942-07-18
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： MCGOWAN MICHAEL E , RUSSELL UMBACH WALTER
IPC: H01J5/62
CPC classification number: H01J5/62 , Y10S228/902 , Y10T29/49169 , Y10T403/473
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