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公开(公告)号:US3176279A
公开(公告)日:1965-03-30
申请号:US79216859
申请日:1959-02-09
Applicant: IBM
Inventor: LIN ANDREW D , WILLARD DENNIS D , JOHNSON DONALD D
CPC classification number: G06K17/0012 , B42F17/34 , G06K13/0843 , G06K17/00 , G06K17/0009 , Y10S221/01
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