Drill rod and drill bit,申请号AU19950040378-传众专利搜索

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发明名称	Drill rod and drill bit
摘要
申请公布号	AU4037895(A)	申请公布日期	1997.06.19
申请号	AU19950040378	申请日期	1995.12.13
申请人	KENNAMETAL SOUTH AFRICA (PROPRIETARY) LIMITED	发明人	STEPHANUS FREDERICK KLOPPERS;JEAN FREDERICK KLOPPERS
分类号	E21B17/046;E21B17/06	主分类号	E21B17/046
代理机构		代理人
主权项
地址

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