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公开(公告)号：US3021434A
公开(公告)日：1962-02-13
申请号：US72368258
申请日：1958-03-25
Applicant: IBM
Inventor： BLUMBERG REX H , KRAUS CHARLES J
CPC classification number: H01L39/10 , G11C11/44 , Y10S505/86
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