Bi-centre drill bit,申请号GB20000015128-传众专利搜索

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发明名称	Bi-centre drill bit
摘要
申请公布号	GB2351513(A)	申请公布日期	2001.01.03
申请号	GB20000015128	申请日期	2000.06.20
申请人	* SMITH INTERNATIONAL INC	发明人	TIMOTHY PAUL * BEATON;DAVID K * TRUAX
分类号	E21B10/26;(IPC1-7):E21B10/26;E21B7/28	主分类号	E21B10/26
代理机构		代理人
主权项
地址

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