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经营范围
发明名称
The reversed streamlined rudder blade
摘要
申请公布号
GB0221496(D0)
申请公布日期
2002.10.23
申请号
GB20020021496
申请日期
2002.09.17
申请人
MACDUFF, THOMAS
发明人
分类号
B63H25/38
主分类号
B63H25/38
代理机构
代理人
主权项
地址
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