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经营范围
发明名称
Suction cleaner
摘要
申请公布号
US2520531(A)
申请公布日期
1950.08.29
申请号
US19470791501
申请日期
1947.12.13
申请人
THE HOOVER COMPANY
发明人
CUDDEBACK NELSON C.
分类号
A47L9/20
主分类号
A47L9/20
代理机构
代理人
主权项
地址
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