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公开(公告)号:US3419884A
公开(公告)日:1968-12-31
申请号:US37888664
申请日:1964-06-29
Applicant: IBM
Inventor: PETER BETTS , REICHEL DONALD R , EISELEN EVERETT T
CPC classification number: G06K15/14 , G03G15/325
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公开(公告)号:CA804779A
公开(公告)日:1969-01-21
申请号:CA804779D
Applicant: IBM
Inventor: REICHEL DONALD R , EISELEN EVERETT T , BETTS PETER
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