ROTARY DRILL BIT,申请号IE19890001073-传众专利搜索

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发明名称	ROTARY DRILL BIT
摘要
申请公布号	IE891073(L)	申请公布日期	1989.10.05
申请号	IE19890001073	申请日期	1989.04.05
申请人	REED TOOL CO LTD	发明人
分类号	E21B10/00;(IPC1-7):E21B10/00	主分类号	E21B10/00
代理机构		代理人
主权项
地址

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