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发明名称
ВЕРТЛЮГ ДЛЯ ШНЕКОВОЙ БУРОВОЙ УСТАНОВКИ
摘要
申请公布号
RU44692(U1)
申请公布日期
2005.03.27
申请号
RU20040132236U
申请日期
2004.11.04
申请人
发明人
分类号
E02D5/36;E02D15/04
主分类号
E02D5/36
代理机构
代理人
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