DRILLING BIT FLUSHING ASSEMBLY,申请号SU19792758906-传众专利搜索

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发明名称	DRILLING BIT FLUSHING ASSEMBLY
摘要
申请公布号	SU817198(A1)	申请公布日期	1981.03.30
申请号	SU19792758906	申请日期	1979.04.25
申请人	SP K BYURO V PROMYSHLENNOGO OBEDINENIYA "SOYUZGEOTEKHNIKA" MINISTERSTVA GEOLOGII SSSR	发明人	PANIN NIKOLAJ M,SU;SMIRNOV VYACHESLAV G,SU;BARABASHKIN IGOR ,SU
分类号	(IPC1-7):E21B9/35	主分类号	(IPC1-7):E21B9/35
代理机构		代理人
主权项
地址

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