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经营范围
发明名称
Improvements in hatch covers
摘要
申请公布号
GB921188(A)
申请公布日期
1963.03.13
申请号
GB19610040116
申请日期
1961.11.09
申请人
VON TELL
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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