DEVICE FOR DRILLING OR DRAINING HOLES IN SOIL OR ROCK,申请号KR20017002233-传众专利搜索

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发明名称	DEVICE FOR DRILLING OR DRAINING HOLES IN SOIL OR ROCK
摘要
申请公布号	KR100609938(B1)	申请公布日期	2006.08.04
申请号	KR20017002233	申请日期	2001.02.21
申请人		发明人
分类号	E21B7/20	主分类号	E21B7/20
代理机构		代理人
主权项
地址

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