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公开(公告)号：US3243783A
公开(公告)日：1966-03-29
申请号：US19654562
申请日：1962-05-10
Applicant: IBM
Inventor： RABENDA EDWARD J , BRODD WAYNE D , MARQUARDT EUGENE E
CPC classification number: G06F17/30985 , G11B27/107 , Y10S707/99931
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