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公开(公告)号:US3316536A
公开(公告)日:1967-04-25
申请号:US55624566
申请日:1966-06-08
Applicant: IBM
Inventor: ANDREWS DOUGLAS R , NOBLE DAVID L
IPC: G06K9/00
CPC classification number: G06K9/186
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公开(公告)号:CA729811A
公开(公告)日:1966-03-08
申请号:CA729811D
Applicant: IBM
Inventor: NOBLE DAVID L , ANDREWS DOUGLAS R
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