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发明名称
BLOWOUT PREVENTER
摘要
申请公布号
SG53992(G)
申请公布日期
1992.07.24
申请号
SG19920000539
申请日期
1992.05.15
申请人
COOPER INDUSTRIES INC.
发明人
分类号
E21B33/06;F16K3/00;(IPC1-7):E21B33/06
主分类号
E21B33/06
代理机构
代理人
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