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公开(公告)号：US3234425A
公开(公告)日：1966-02-08
申请号：US16817562
申请日：1962-01-23
Applicant: RCA CORP
Inventor： POSNER JASON S , SPANN PETER P
IPC: H01J1/88
CPC classification number: H01J1/88
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