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发明名称
Casing Apparatus with Casing Cap, Pedestal for Preventing the Eccentricity, and Boring Machine for Preventing Flow Backward on Pedestal
摘要
申请公布号
KR100921991(B1)
申请公布日期
2009.10.19
申请号
KR20070110377
申请日期
2007.10.31
申请人
发明人
分类号
E02D23/02;E01D19/02;E02D23/00
主分类号
E02D23/02
代理机构
代理人
主权项
地址
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