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经营范围
发明名称
Twin hull variable draft drilling vessel
摘要
申请公布号
USRE29167(E)
申请公布日期
1977.04.05
申请号
US19750577674
申请日期
1975.05.15
申请人
发明人
分类号
B63B1/10;B63B35/44
主分类号
B63B1/10
代理机构
代理人
主权项
地址
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