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发明名称
DEVICE FOR RESTORING FLUID-TIGHTNESS OF THREADED JOINTS OF STRINGS IN A WELL
摘要
申请公布号
SU832050(A1)
申请公布日期
1981.05.23
申请号
SU19792756384
申请日期
1979.04.23
申请人
SEVERO-KAVKAZSKIJ GNI PI NEFTYANOJ PROMYSHLENNOSTI
发明人
ARSENEV ADOL K,SU;YAVICH EVGENIJ I,SU;ROMAN IVAN V,SU;MOLOSTOV VALERIJ V,SU
分类号
E21B29/00;(IPC1-7):E21B29/00
主分类号
E21B29/00
代理机构
代理人
主权项
地址
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