Earth-boring bit and nozzle,申请号GB20030005138-传众专利搜索

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发明名称	Earth-boring bit and nozzle
摘要
申请公布号	GB0305138(D0)	申请公布日期	2003.04.09
申请号	GB20030005138	申请日期	2000.03.10
申请人	SMITH INTERNATIONAL INC	发明人
分类号	E21B10/18;E21B10/60;E21B10/61;E21B10/62	主分类号	E21B10/18
代理机构		代理人
主权项
地址

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