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公开(公告)号：US3114131A
公开(公告)日：1963-12-10
申请号：US76747358
申请日：1958-10-15
Applicant: IBM
Inventor： FURR ROBERT J , PIERPONT JR JOHN E , SHELTON JR GLENMORE L , WEIDENHAMMER JAMES A
IPC: G06K9/00
CPC classification number: G06K9/186
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