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发明名称
OFFSHORE-SYSTEM FOR BORING AV BOREHULL.
摘要
申请公布号
NO152346(B)
申请公布日期
1985.06.03
申请号
NO19780003473
申请日期
1978.10.13
申请人
TEXACO DEVELOPMENT CORP,
发明人
MOTT, GEORGE EDWARD,
分类号
E21B17/01;E21B21/00;(IPC1-7):E21B7/128
主分类号
E21B17/01
代理机构
代理人
主权项
地址
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