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发明名称
METHOD OF RELEASING STUCK PIPES
摘要
申请公布号
SU1717788(A1)
申请公布日期
1992.03.07
申请号
SU19894651590
申请日期
1989.02.15
申请人
KURTOV VENIAMIN D,SU;OZARCHUK PETR A,SU;GLUSHAKOV ADOLF YA,SU;VOLOSHINIVSKIJ BOGDAN O,SU
发明人
KURTOV VENIAMIN D,SU;OZARCHUK PETR A,SU;GLUSHAKOV ADOLF YA,SU;VOLOSHINIVSKIJ BOGDAN O,SU
分类号
E21B31/03;E21B23/00
主分类号
E21B31/03
代理机构
代理人
主权项
地址
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