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发明名称
A safer stepladder, for use on ships
摘要
申请公布号
GB0110123(D0)
申请公布日期
2001.06.20
申请号
GB20010010123
申请日期
2001.04.25
申请人
WHITE, NIGEL
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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