DRILL BIT HAVING LARGE DIAMETER PDC CUTTERS,申请号EP20020100343-传众专利搜索

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发明名称	DRILL BIT HAVING LARGE DIAMETER PDC CUTTERS
摘要
申请公布号	EP1251239(A3)	申请公布日期	2002.12.18
申请号	EP20020100343	申请日期	2002.04.05
申请人	SMITH INTERNATIONAL, INC.	发明人	MENSA-WILMOT, GRAHAM;TRUAX, DAVID K.
分类号	E21B10/56;E21B10/567;E21B10/573;(IPC1-7):E21B10/56	主分类号	E21B10/56
代理机构		代理人
主权项
地址

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