PERIPHERAL TOOTH OF ROLLER BIT,申请号SU19853904324-传众专利搜索

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发明名称	PERIPHERAL TOOTH OF ROLLER BIT
摘要
申请公布号	SU1490244(A1)	申请公布日期	1989.06.30
申请号	SU19853904324	申请日期	1985.05.31
申请人	VNII BUROVOJ TEKHNIKI	发明人	BIRMAN VALERIJ A,SU;VLADISLAVLEV YURIJ E,SU;PEREGUDOV ALEKSANDR A,SU;AGOSHASHVILI TARIEL G,SU;MASLENNIKOV IGOR K,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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