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发明名称
Dredging construction method of pipe using water pressure
摘要
申请公布号
KR100690956(B1)
申请公布日期
2007.03.09
申请号
KR20050008633
申请日期
2005.01.31
申请人
发明人
分类号
E03F9/00
主分类号
E03F9/00
代理机构
代理人
主权项
地址
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