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经营范围
发明名称
Improvements in or relating to suction sweepers
摘要
申请公布号
GB326428(A)
申请公布日期
1930.03.13
申请号
GB19290020630
申请日期
1929.07.05
申请人
THE HOOVER COMPANY
发明人
分类号
A47L9/04
主分类号
A47L9/04
代理机构
代理人
主权项
地址
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