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公开(公告)号：US3154714A
公开(公告)日：1964-10-27
申请号：US11338261
申请日：1961-05-29
Applicant: RCA CORP
Inventor： GORMAY LEWIS R
IPC: H01J19/28
CPC classification number: H01J19/28 , H01J2893/0013
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