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发明名称
Utblåsningsventilanordning
摘要
申请公布号
NO20031890(A)
申请公布日期
2003.06.30
申请号
NO20030001890
申请日期
2003.04.28
申请人
COOPER CAMERON CORP
发明人
BIESTER, KLAUS
分类号
E21B33/035;E21B33/06;(IPC1-7):E21B33/06
主分类号
E21B33/035
代理机构
代理人
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