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经营范围
发明名称
Improvements in ships' hatches
摘要
申请公布号
GB441388(A)
申请公布日期
1936.01.20
申请号
GB19340021103
申请日期
1934.07.19
申请人
ROBERT MACGREGOR
发明人
分类号
B63B19/22
主分类号
B63B19/22
代理机构
代理人
主权项
地址
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