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公开(公告)号：US3243626A
公开(公告)日：1966-03-29
申请号：US21032462
申请日：1962-07-17
Applicant: RCA CORP
Inventor： ANDERSON HELVY FRED , MACPHERSON MATHESON ROBERT
IPC: H01J43/08
CPC classification number: H01J43/08
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