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发明名称
Full-bore flow-isolation valve
摘要
申请公布号
GB0223962(D0)
申请公布日期
2002.11.20
申请号
GB20020023962
申请日期
2002.10.15
申请人
THOMAS, DEREK H
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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