Axial stability in rocks bits,申请号GB20040015868-传众专利搜索

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发明名称	Axial stability in rocks bits
摘要
申请公布号	GB0415868(D0)	申请公布日期	2004.08.18
申请号	GB20040015868	申请日期	2004.07.15
申请人	SMITH INTERNATIONAL INC	发明人
分类号	E21B10/08	主分类号	E21B10/08
代理机构		代理人
主权项
地址

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