LOCK FOR CONNECTING DRILL PIPES,申请号SU19782615401-传众专利搜索

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发明名称	LOCK FOR CONNECTING DRILL PIPES
摘要
申请公布号	SU751955(A1)	申请公布日期	1980.07.30
申请号	SU19782615401	申请日期	1978.05.11
申请人	N-PROIZV OB "UZBEKGIDROGEOLOGIYA"	发明人	KUDEKOV YURIJ F,SU;SKORNYAKOV YURIJ M,SU;MERKULOV VALERIJ E,SU
分类号	E21B17/042;E21B17/02;(IPC1-7):E21B17/02	主分类号	E21B17/042
代理机构		代理人
主权项
地址

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