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发明名称
Improved marine riser
摘要
申请公布号
GB9710440(D0)
申请公布日期
1997.07.16
申请号
GB19970010440
申请日期
1997.05.22
申请人
APEX TUBULARS LTD
发明人
WOODROW TIMOTHY JOHN
分类号
B63B21/50;E21B17/01;E21B17/08;F16L1/24;F16L39/00;F16L39/06
主分类号
B63B21/50
代理机构
代理人
主权项
地址
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