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发明名称
DEVICE FOR SECURING INSTRUMENT IN WELL
摘要
申请公布号
SU815267(A1)
申请公布日期
1981.03.23
申请号
SU19792742673
申请日期
1979.03.26
申请人
V NEFTEGAZOVYJ NI INSTITUT
发明人
KOSOLAPOV PETR ,SU
分类号
E21B47/024;(IPC1-7):E21B47/02
主分类号
E21B47/024
代理机构
代理人
主权项
地址
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