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公开(公告)号：US3136028A
公开(公告)日：1964-06-09
申请号：US10339161
申请日：1961-04-17
Applicant: RCA CORP
Inventor： NICHOLAS HUMEN
IPC: H01J19/46
CPC classification number: H01J19/46 , H01J2893/0007 , Y10T29/53196
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