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经营范围
发明名称
DRILLING RIG
摘要
申请公布号
RU2030544(C1)
申请公布日期
1995.03.10
申请号
SU19904844390
申请日期
1990.06.26
申请人
EROSHKIN LEONID ALEKSEEVICH;KOGAN ANDREJ DANIILOVICH;BOJCHEVSKIJ VADIM OLEGOVICH
发明人
EROSHKIN LEONID A;KOGAN ANDREJ D;BOJCHEVSKIJ VADIM O
分类号
E21B19/14;(IPC1-7):E21B19/14
主分类号
E21B19/14
代理机构
代理人
主权项
地址
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