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发明名称
DRILLING RIG BASE
摘要
申请公布号
SU1054535(A1)
申请公布日期
1983.11.15
申请号
SU19823452498
申请日期
1982.06.15
申请人
LAPKO SERGEJ D,SU
发明人
LAPKO SERGEJ D,SU
分类号
E21B15/00;(IPC1-7):E21B15/00
主分类号
E21B15/00
代理机构
代理人
主权项
地址
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