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发明名称
Hydraulisk utlösbar frakoplingsanordning
摘要
申请公布号
NO180552(B)
申请公布日期
1997.01.27
申请号
NO19940002136
申请日期
1994.06.09
申请人
BAKKE OIL TOOLS AS
发明人
BAKKE, STIG
分类号
E21B17/06;E21B23/04;(IPC1-7):E21B17/06;F16L37/08
主分类号
E21B17/06
代理机构
代理人
主权项
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