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发明名称
Kuleventil
摘要
申请公布号
NO322591(B1)
申请公布日期
2006.10.30
申请号
NO20010001200
申请日期
2001.03.09
申请人
EXPRO NORTH SEA LTD
发明人
EDWARDS JEFFREY CHARLES;COWIE GAVIN DAVID
分类号
E21B34/10;E21B23/10;E21B34/00;E21B34/04;F16K5/06;F16K25/00
主分类号
E21B34/10
代理机构
代理人
主权项
地址
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