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公开(公告)号：US3024300A
公开(公告)日：1962-03-06
申请号：US76526958
申请日：1958-10-01
Applicant: RCA CORP
Inventor： MARTIN IRVING E
IPC: H01J5/26
CPC classification number: H01J5/26 , H01J2893/0041 , Y10S285/911 , Y10T29/49945 , Y10T403/49 , Y10T403/4966 , Y10T403/7047
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