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发明名称
Koplingsanordning og fremgangsmåte til bruk av koplingsanordningen
摘要
申请公布号
NO993437(D0)
申请公布日期
1999.07.12
申请号
NO19990003437
申请日期
1999.07.12
申请人
BAKKE OIL TOOLS AS
发明人
BAKKE, STIG
分类号
E21B17/04;E21B17/20;F16L19/065;(IPC1-7):F16L
主分类号
E21B17/04
代理机构
代理人
主权项
地址
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