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公开(公告)号：US2404086A
公开(公告)日：1946-07-16
申请号：US46113442
申请日：1942-10-07
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： CARL OKRESS ERNEST , ERIC NELSON DONALD , CURTIS RETHERFORD ROBERT
IPC: H01J23/54
CPC classification number: H01J23/54
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