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公开(公告)号：US2526399A
公开(公告)日：1950-10-17
申请号：US51534643
申请日：1943-12-23
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： OKRESS ERNEST C , HOLMBOE LEONHARD W
IPC: H01J23/46
CPC classification number: H01J23/46
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