DIAMOND DRILL BIT,申请号SU19914953356-传众专利搜索

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发明名称	DIAMOND DRILL BIT
摘要
申请公布号	RU2007542(C1)	申请公布日期	1994.02.15
申请号	SU19914953356	申请日期	1991.06.05
申请人	CHIKHOTKIN VIKTOR FEDOROVICH	发明人	CHIKHOTKIN VIKTOR F;CHIKHOTKIN FEDOR I
分类号	E21B10/48;(IPC1-7):E21B10/48	主分类号	E21B10/48
代理机构		代理人
主权项
地址

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