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公开(公告)号：US3351341A
公开(公告)日：1967-11-07
申请号：US49982765
申请日：1965-10-21
Applicant: IBM
Inventor： MARING BLAYNE E , PENDY JR WILLIAM J , GRIMM CHARLES H , JOHNSON JOEL S
IPC: G06K13/14
CPC classification number: G06K13/14
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