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经营范围
发明名称
Safety system of school zone
摘要
申请公布号
KR100692109(B1)
申请公布日期
2007.03.12
申请号
KR20050026998
申请日期
2005.03.31
申请人
发明人
分类号
G08B21/02;G08G1/052;G08G1/095
主分类号
G08B21/02
代理机构
代理人
主权项
地址
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