MEANS FOR RETAINING DOWNHOLE DEVICE IN PIPE STRING,申请号SU19894717899-传众专利搜索

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发明名称	MEANS FOR RETAINING DOWNHOLE DEVICE IN PIPE STRING
摘要
申请公布号	SU1657601(A1)	申请公布日期	1991.06.23
申请号	SU19894717899	申请日期	1989.07.11
申请人	KAZAKHSKIJ GNI PI NEFTYANOJ PROMYSHLENNOSTI	发明人	SHARAPINSKIJ VLADIMIR K,SU
分类号	E21B23/02	主分类号	E21B23/02
代理机构		代理人
主权项
地址

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