Rock drilling device for Performing the free Surface in rock Splitting,申请号KR20070093622-传众专利搜索

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发明名称	Rock drilling device for Performing the free Surface in rock Splitting
摘要
申请公布号	KR100916339(B1)	申请公布日期	2009.10.14
申请号	KR20070093622	申请日期	2007.09.14
申请人		发明人
分类号	E21B3/00	主分类号	E21B3/00
代理机构		代理人
主权项
地址

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