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发明名称
CROSSING JUDGMENT AND INTERSECTION CALCULATION SYSTEM FOR POLYGON AND STRAIGHT LINE
摘要
申请公布号
JPH05120430(A)
申请公布日期
1993.05.18
申请号
JP19910283448
申请日期
1991.10.30
申请人
NEC CORP
发明人
NAKAGAWA JUNKO
分类号
G06T7/60
主分类号
G06T7/60
代理机构
代理人
主权项
地址
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