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发明名称
SYSTEM FOR DISPLAYING REMAINING TIME OF GO SIGNAL IN TRAFFIC SIGNAL SYSTEM
摘要
申请公布号
KR1019930011731(B1)
申请公布日期
1993.12.18
申请号
KR1019910000377
申请日期
1991.01.12
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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