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经营范围
发明名称
KOPLING.
摘要
申请公布号
NO873908(A)
申请公布日期
1988.03.21
申请号
NO19870003908
申请日期
1987.09.17
申请人
BRITISH PETROLEUM CO PLC, THE;SEANOR ENGINEERING A/S
发明人
LINDELIEN, GUNNAR
分类号
E21B33/038;F16L37/084;F16L37/56;(IPC1-7):E21B33/038
主分类号
E21B33/038
代理机构
代理人
主权项
地址
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