Cutting structure for earth boring drill bits,申请号GB20010017852-传众专利搜索

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发明名称	Cutting structure for earth boring drill bits
摘要
申请公布号	GB0117852(D0)	申请公布日期	2001.09.12
申请号	GB20010017852	申请日期	2001.07.23
申请人	SCHLUMBERGER HOLDINGS LIMITED	发明人
分类号	E21B7/06;E21B10/42;E21B10/43	主分类号	E21B7/06
代理机构		代理人
主权项
地址

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