Drill rig for underground mining operations.,申请号ZA19990005150-传众专利搜索

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发明名称	Drill rig for underground mining operations.
摘要
申请公布号	ZA9905150(B)	申请公布日期	2000.02.17
申请号	ZA19990005150	申请日期	1999.08.12
申请人	HYDRO POWER ENGINEERING (PROPRIETARY) LIMITED	发明人	PETER DUNCAN FRASER
分类号	E21C	主分类号	E21C
代理机构		代理人
主权项
地址

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