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经营范围
发明名称
Offshore drilling barge
摘要
申请公布号
US2771747(A)
申请公布日期
1956.11.27
申请号
US19500174691
申请日期
1950.07.19
申请人
BETHLEHEM STEEL COMPANY
发明人
RECHTIN EBERHARDT C.
分类号
E02B17/02;E02B17/08
主分类号
E02B17/02
代理机构
代理人
主权项
地址
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