Multiple diameter cutting elements and bits incorporating the same,申请号GB20040018716-传众专利搜索

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发明名称	Multiple diameter cutting elements and bits incorporating the same
摘要
申请公布号	GB0418716(D0)	申请公布日期	2004.09.22
申请号	GB20040018716	申请日期	2004.08.23
申请人	SMITH INTERNATIONAL INC	发明人
分类号	E21B10/56;E21B10/567	主分类号	E21B10/56
代理机构		代理人
主权项
地址

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