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公开(公告)号:EP0041520A4
公开(公告)日:1984-03-26
申请号:EP80902382
申请日:1980-11-10
Applicant: NCR CORP
Inventor: CRAYCRAFT DONALD GREGORY , LOCKWOOD GEORGE CORBIN , DONALDSON DARRELL DOUGLAS
IPC: G11C14/00 , G11C11/40
CPC classification number: G11C14/00