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发明名称
OFFSHORE PLATFORMS
摘要
申请公布号
GB1489254(A)
申请公布日期
1977.10.19
申请号
GB19740055059
申请日期
1974.12.19
申请人
DANBURY DRILLING LTD;REARDON SMITH EXPLORATION LTD
发明人
分类号
E21B19/00;(IPC1-7):E02B17/00
主分类号
E21B19/00
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代理人
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