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发明名称
Rörkopling
摘要
申请公布号
NO175389(C)
申请公布日期
1994.10.05
申请号
NO19880001749
申请日期
1988.04.21
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV
发明人
LAURSEN, NILS KRISTIAN
分类号
E21B43/013;F16L37/00;(IPC1-7):F16L37/00
主分类号
E21B43/013
代理机构
代理人
主权项
地址
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