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经营范围
发明名称
Vacuum cleaner
摘要
申请公布号
US1881086(A)
申请公布日期
1932.10.04
申请号
US19310509465
申请日期
1931.01.17
申请人
MARGARET MARSHALL
发明人
MARSHALL MARGARET
分类号
A47L7/04;A47L9/14
主分类号
A47L7/04
代理机构
代理人
主权项
地址
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