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发明名称
УСТРОЙСТВО ДЛЯ ЦЕМЕНТИРОВАНИЯ ДОПОЛНИТЕЛЬНОЙ ОБСАДНОЙ КОЛОННЫ
摘要
申请公布号
RU37381(U1)
申请公布日期
2004.04.20
申请号
RU20030133900U
申请日期
2003.11.24
申请人
发明人
分类号
E21B33/14
主分类号
E21B33/14
代理机构
代理人
主权项
地址
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