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发明名称
Устройство для очистки внутренней поверхности труб в нефтегазодобывающих скважинах от отложений (варианты)
摘要
申请公布号
RU32187(U1)
申请公布日期
2003.09.10
申请号
RU20030111669U
申请日期
2003.04.29
申请人
Общество с ограниченной ответственностью "Каскад"
发明人
Вишняков А.Н.;Вишняков С.А.
分类号
E21B37/02
主分类号
E21B37/02
代理机构
代理人
主权项
地址
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