IMPROVEMENTS IN DRILL RIGS,申请号ZA19700001339-传众专利搜索

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发明名称	IMPROVEMENTS IN DRILL RIGS
摘要
申请公布号	ZA7001339(B)	申请公布日期	1971.05.27
申请号	ZA19700001339	申请日期	1970.03.02
申请人	RAND MINES LTD	发明人	FOURIE R
分类号	E21B	主分类号	E21B
代理机构		代理人
主权项
地址

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