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公开(公告)号：US2841509A
公开(公告)日：1958-07-01
申请号：US50423055
申请日：1955-04-27
Applicant: RCA CORP
Inventor： JENSEN ROBERT V , LAFF ROBERT A
CPC classification number: C30B15/04 , C30B13/10 , H01L21/00 , Y10S56/02 , Y10S420/903
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