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公开(公告)号：US3048333A
公开(公告)日：1962-08-07
申请号：US70544257
申请日：1957-12-26
Applicant: IBM
Inventor： BROWN JOSEPH L , TAYLOR JORDAN M , STOUGHTON PHILIP N
CPC classification number: G06F7/5272 , G06F15/78
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