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公开(公告)号：DE2457921B1
公开(公告)日：1976-05-06
申请号：DE2457921
申请日：1974-12-07
Applicant: IBM DEUTSCHLAND
Inventor： HEUBER KLAUS DIPL-ING , KLEIN WILFRIED , NAJMANN KNUT DIPL-ING , WIEDMANN SIEGFRIED DIPL-ING DR
IPC: G11C11/414 , G11C11/411 , G11C11/415 , G11C7/00 , G11C11/40
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