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发明名称
Арматура термостойка парова
摘要
申请公布号
RU36121(U1)
申请公布日期
2004.02.27
申请号
RU20030131471U
申请日期
2003.10.28
申请人
发明人
分类号
E21B33/03
主分类号
E21B33/03
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代理人
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