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发明名称
MARINE RISER PIPE SECTION
摘要
申请公布号
GB1540503(A)
申请公布日期
1979.02.14
申请号
GB19770014843
申请日期
1977.04.07
申请人
MCEVOY OILFIELD EQUIPMENT CO
发明人
分类号
E21B33/038;F16L37/113;(IPC1-7):F16L21/08
主分类号
E21B33/038
代理机构
代理人
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