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发明名称
КЛАПАН СПЕЦИАЛЬНЫЙ ДВУХКАМЕРНЫЙ ДЛЯ ЭКСПЛУАТАЦИИ СКВАЖИН УСТАНОВКАМИ ЭЛЕКТРОЦЕНТРОБЕЖНЫХ НАСОСОВ
摘要
申请公布号
RU44142(U1)
申请公布日期
2005.02.27
申请号
RU20040126543U
申请日期
2004.09.03
申请人
发明人
分类号
E21B34/06;F16K17/36
主分类号
E21B34/06
代理机构
代理人
主权项
地址
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