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经营范围
发明名称
Suction cleaner
摘要
申请公布号
US2178003(A)
申请公布日期
1939.10.31
申请号
US19310531872
申请日期
1931.04.22
申请人
THE HOOVER COMPANY
发明人
SMELLIE DONALD G.
分类号
A47L5/32
主分类号
A47L5/32
代理机构
代理人
主权项
地址
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