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发明名称
ХВОСТОВИК ДЛЯ ЭКСПЛУАТАЦИИ СКВАЖИН С ПОВЫШЕННЫМ СОДЕРЖАНИЕМ ПЕСКА
摘要
申请公布号
RU2002130421(A)
申请公布日期
2004.05.20
申请号
RU20020130421
申请日期
2002.11.12
申请人
Открытое акционерное общество "Шешмаойл"
发明人
Исаев Анатолий Андреевич (RU)
分类号
E21B43/00;F04B47/00
主分类号
E21B43/00
代理机构
代理人
主权项
地址
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