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发明名称
SYSTEM TIL OPPRETTELSE AV TETNINGSFORBINDELSE MELLOM TO AKSIALT SAMMENSTOETENDE DELER I EN ROERLEDNING.
摘要
申请公布号
NO167474(B)
申请公布日期
1991.07.29
申请号
NO19880005759
申请日期
1988.12.27
申请人
FRIELE TRADING AS
发明人
HJERTHOLM, OLE G.
分类号
E21B17/02;E21B33/038;F16L17/00;(IPC1-7):E21B33/02;F16J15/08
主分类号
E21B17/02
代理机构
代理人
主权项
地址
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