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经营范围
发明名称
Ram-type blowout preventor.
摘要
申请公布号
EP0678656(A3)
申请公布日期
1996.09.25
申请号
EP19950301917
申请日期
1995.03.22
申请人
COOPER CAMERON CORPORATION
发明人
OLSON, RICHARD A.
分类号
E21B29/08;E21B33/06;(IPC1-7):E21B33/06
主分类号
E21B29/08
代理机构
代理人
主权项
地址
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