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发明名称
METHOD OF RELEASING STUCK DRILLING STRING
摘要
申请公布号
SU1716083(A1)
申请公布日期
1992.02.28
申请号
SU19894665690
申请日期
1989.02.08
申请人
IVANO-FRANKOVSKIJ I NEFTI GAZA
发明人
ZARUBIN YURIJ A,SU;MYSLYUK MIKHAIL A,SU;YASOV VITALIJ G,SU;TKACHUK VASILIJ V,SU
分类号
E21B31/03;E21B23/00;E21B43/27
主分类号
E21B31/03
代理机构
代理人
主权项
地址
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