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发明名称
Основание под буровую вышку
摘要
申请公布号
SU62846(A1)
申请公布日期
1943.11.30
申请号
SU19410439959
申请日期
1941.05.23
申请人
KOROTKOV I.A.;PERMYAKOV I.G.;TIMOFEVA N.S.
发明人
KOROTKOV I.A.;PERMYAKOV I.G.;TIMOFEVA N.S.
分类号
E21B15/00
主分类号
E21B15/00
代理机构
代理人
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地址
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