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经营范围
发明名称
Riser guide and support mechanism
摘要
申请公布号
GB9922452(D0)
申请公布日期
1999.11.24
申请号
GB19990022452
申请日期
1999.09.22
申请人
DEEP OIL TECHNOLOGY,INCORPORATED
发明人
分类号
E21B17/01;E21B19/00
主分类号
E21B17/01
代理机构
代理人
主权项
地址
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