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公开(公告)号：US3271731A
公开(公告)日：1966-09-06
申请号：US33619764
申请日：1964-01-07
Applicant: ZENITH RADIO CORP
Inventor： ROBERT ADLER , CRUMLY CHARLES B , FOSTER LEIGH C , LINDLEY JOHN P
IPC: H01J25/49
CPC classification number: H01J25/49
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