UNDER-REAMING OF SMALL DIAMETER BOREHOLES,申请号GB19850007507-传众专利搜索

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发明名称	UNDER-REAMING OF SMALL DIAMETER BOREHOLES
摘要
申请公布号	GB8507507(D0)	申请公布日期	1985.05.01
申请号	GB19850007507	申请日期	1985.03.22
申请人	FONDEDILE FOUNDATIONS LTD	发明人
分类号	E21B10/32	主分类号	E21B10/32
代理机构		代理人
主权项
地址

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