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经营范围
发明名称
Suction cleaner
摘要
申请公布号
US1815242(A)
申请公布日期
1931.07.21
申请号
US19290356099
申请日期
1929.04.18
申请人
THE HOOVER COMPANY
发明人
DAVIDSON WALTER C.
分类号
A47L9/14
主分类号
A47L9/14
代理机构
代理人
主权项
地址
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