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公开(公告)号：US2824776A
公开(公告)日：1958-02-25
申请号：US60337056
申请日：1956-08-10
Applicant: BURROUGHS CORP
Inventor： ALEXANDER ELOVIC , BEST DONALD T
IPC: G11B5/09
CPC classification number: G11B5/09
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