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发明名称
A rest time's digital display device of the traffic signal light
摘要
申请公布号
KR100666849(B1)
申请公布日期
2007.01.11
申请号
KR20040033665
申请日期
2004.05.10
申请人
发明人
分类号
G08G1/095
主分类号
G08G1/095
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代理人
主权项
地址
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