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经营范围
发明名称
Improvements in metallic hatch covers particularly for ships' tween decks
摘要
申请公布号
GB667464(A)
申请公布日期
1952.03.05
申请号
GB19500004625
申请日期
1950.02.23
申请人
ROBERT MACGREGOR;JOSEPH MACGREGOR
发明人
分类号
B63B19/203
主分类号
B63B19/203
代理机构
代理人
主权项
地址
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