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发明名称
Пакер
摘要
申请公布号
RU2002120070(A)
申请公布日期
2004.01.20
申请号
RU20020120070
申请日期
2002.07.29
申请人
Государственное унитарное предпри тие Научно-производственное объединение "Гидротрубопровод"
发明人
Кондратьев Александр Сергеевич;Наумова Елена Александровна;Петраков Александр Павлович;Федоткин Алексей Владимирович
分类号
E21B33/12
主分类号
E21B33/12
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