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发明名称
Rotation spray drain device for bridgeod drain pipe
摘要
申请公布号
KR101123128(B1)
申请公布日期
2012.03.19
申请号
KR20090125652
申请日期
2009.12.16
申请人
发明人
分类号
E01D19/08
主分类号
E01D19/08
代理机构
代理人
主权项
地址
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