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发明名称
Apparatus of closing for manhole of ship
摘要
申请公布号
KR20140002377(U)
申请公布日期
2014.04.24
申请号
KR20120009336U
申请日期
2012.10.16
申请人
发明人
分类号
B63B9/00;E06B3/80;E06B5/00
主分类号
B63B9/00
代理机构
代理人
主权项
地址
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