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发明名称
PROCESS AND DEVICE FOR BORING HOLES
摘要
申请公布号
KR20010013923(A)
申请公布日期
2001.02.26
申请号
KR1019997011945
申请日期
1999.12.17
申请人
发明人
分类号
E02D5/76
主分类号
E02D5/76
代理机构
代理人
主权项
地址
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