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公开(公告)号：US3261563A
公开(公告)日：1966-07-19
申请号：US16548262
申请日：1962-01-11
Applicant: IBM
Inventor： AWEIDA JESSE I , CLOSE DONALD K , PAO HENRY C
IPC: G11B15/58
CPC classification number: G11B15/58
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