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发明名称
A BACK-UP BRAKE SYSTEM OF LIFTS
摘要
申请公布号
HK1196743(A2)
申请公布日期
2014.12.19
申请号
HK20140109341
申请日期
2014.09.16
申请人
劉葉雄 號壹座
发明人
劉葉雄
分类号
B66B
主分类号
B66B
代理机构
代理人
主权项
地址
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