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公开(公告)号:US3007620A
公开(公告)日:1961-11-07
申请号:US80574559
申请日:1959-04-13
Applicant: IBM
Inventor: LAFRAMBOISE GUY R , PRATER MERLE P
IPC: G06K1/06
CPC classification number: G06K1/06 , Y10T225/30
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公开(公告)号:US3015424A
公开(公告)日:1962-01-02
申请号:US81695759
申请日:1959-05-29
Applicant: IBM
Inventor: LAFRAMBOISE GUY R
CPC classification number: G06K1/06 , G06K19/00 , Y10T225/30
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