ROLLER CUTTER DRILL BIT,申请号UA20020129788-传众专利搜索

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发明名称	ROLLER CUTTER DRILL BIT
摘要
申请公布号	UA63122(A)	申请公布日期	2004.01.15
申请号	UA20020129788	申请日期	2002.12.06
申请人		发明人
分类号	E21B10/08;E21B10/16;(IPC1-7):E21B10/08	主分类号	E21B10/08
代理机构		代理人
主权项
地址

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