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发明名称
Device for covering hatch openings
摘要
申请公布号
US2789525(A)
申请公布日期
1957.04.23
申请号
US19550533827
申请日期
1955.09.12
申请人
AKTIEBOLAGET GOTAVERKEN
发明人
AARVOLD REINHARDT OLAI
分类号
B63B19/14
主分类号
B63B19/14
代理机构
代理人
主权项
地址
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