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发明名称
ПАКЕР ДЛЯ ЗАЩИТЫ СКВАЖИНЫ ОТ ЗАСОРЕНИЯ
摘要
申请公布号
RU2003106519(A)
申请公布日期
2004.09.20
申请号
RU20030106519
申请日期
2003.03.07
申请人
Сафин Велир Ахатович (RU)
发明人
Сафин Велир Ахатович (RU);Исмагилов Фанзат Завдатович (RU);Шакиров Тальгат Хайруллович (RU);Ермаков Олег Николаевич (RU)
分类号
E21B33/12
主分类号
E21B33/12
代理机构
代理人
主权项
地址
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