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发明名称
ГЕРМЕТИЗАТОР УСТЬЯ СКВАЖИНЫ
摘要
申请公布号
RU41488(U1)
申请公布日期
2004.10.27
申请号
RU20040118995U
申请日期
2004.06.24
申请人
发明人
分类号
E21B33/068
主分类号
E21B33/068
代理机构
代理人
主权项
地址
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