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公开(公告)号：US3237935A
公开(公告)日：1966-03-01
申请号：US34517664
申请日：1964-02-17
Applicant: IBM
Inventor： BECKER FRANK E , DEN TEX KAREL
CPC classification number: G06K13/10 , B65H1/04 , B65H1/14 , B65H2701/1125 , B65H2801/21 , G06K13/14
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