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发明名称
Элеватор для спуска и подъема бурового снаряда
摘要
申请公布号
SU132144(A1)
申请公布日期
1960.11.30
申请号
SU19600656759
申请日期
1960.02.27
申请人
AFANASEV B.L.;GLUSHKOV A.G.;KHURS E.I.
发明人
AFANASEV B.L.;GLUSHKOV A.G.;KHURS E.I.
分类号
E21B19/07
主分类号
E21B19/07
代理机构
代理人
主权项
地址
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