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公开(公告)号:CA2061054A1
公开(公告)日:1992-10-24
申请号:CA2061054
申请日:1992-02-12
Applicant: IBM
Inventor: LUCAS BRUCE D
IPC: G06F17/50 , G06T15/08 , G06T15/50 , G06F15/72 , G06F15/62 , G09F3/14