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发明名称
Клапан для перепуска газа
摘要
申请公布号
RU33629(U1)
申请公布日期
2003.10.27
申请号
RU20030103006U
申请日期
2003.02.05
申请人
发明人
分类号
F16K1/38;E21B34/02
主分类号
F16K1/38
代理机构
代理人
主权项
地址
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