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经营范围
发明名称
Maintenance Method of Concrete Layer of Expansion Joint and Bridge Shoe
摘要
申请公布号
KR100950717(B1)
申请公布日期
2010.03.31
申请号
KR20090061467
申请日期
2009.07.07
申请人
发明人
分类号
E01D22/00;C04B14/38;E01D19/00
主分类号
E01D22/00
代理机构
代理人
主权项
地址
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