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公开(公告)号:US3168309A
公开(公告)日:1965-02-02
申请号:US16320861
申请日:1961-12-29
Applicant: IBM
Inventor: SCHOPP ROBERT E , CHOU ALBERT S , SPURRIER CHESTER E
IPC: G06K13/06
CPC classification number: G06K13/06
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公开(公告)号:CA719607A
公开(公告)日:1965-10-12
申请号:CA719607D
Applicant: IBM
Inventor: CHOU ALBERT SZE-CHING , SCHOPP ROBERT E , SPURRIER CHESTER E
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