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发明名称
Diverter flow line seal
摘要
申请公布号
GB9814438(D0)
申请公布日期
1998.09.02
申请号
GB19980014438
申请日期
1998.07.03
申请人
ABB VETCO GRAY INC
发明人
分类号
E21B33/00;E21B33/03;F16J15/46
主分类号
E21B33/00
代理机构
代理人
主权项
地址
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