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发明名称
Rock drilling unit with auto rod change
摘要
申请公布号
KR101200056(B1)
申请公布日期
2012.11.12
申请号
KR20100065473
申请日期
2010.07.07
申请人
发明人
分类号
E21B1/38;E21B15/00;E21B19/18
主分类号
E21B1/38
代理机构
代理人
主权项
地址
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