CONE DRILL BIT,申请号SU19884458122-传众专利搜索

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发明名称	CONE DRILL BIT
摘要
申请公布号	SU1691498(A1)	申请公布日期	1991.11.15
申请号	SU19884458122	申请日期	1988.06.18
申请人	TRAVKIN VITALIJ S,SU;SMIRNOV VYACHESLAV G,SU;FILATOV BORIS P,SU	发明人	TRAVKIN VITALIJ S,SU;SMIRNOV VYACHESLAV G,SU;FILATOV BORIS P,SU
分类号	E21B10/16	主分类号	E21B10/16
代理机构		代理人
主权项
地址

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