GEAR FOR ISOLATION OF STRING CLEARANCE WITH GROUTING-OFF OF WELLS,申请号SU19904845084-传众专利搜索

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发明名称	GEAR FOR ISOLATION OF STRING CLEARANCE WITH GROUTING-OFF OF WELLS
摘要
申请公布号	RU1812301(C)	申请公布日期	1993.04.30
申请号	SU19904845084	申请日期	1990.05.03
申请人	PROIZVODSTVENNOE OB"EDINENIE "YUZHPOLIMETALL"	发明人	IVANOV ALEKSANDR G;GNEUSHEV VALERIJ V;BELYAKOV ANATOLIJ YA;LEBEDEV NIKOLAJ YU
分类号	E21B33/14;(IPC1-7):E21B33/14	主分类号	E21B33/14
代理机构		代理人
主权项
地址

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