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经营范围
发明名称
Vacuum cleaner
摘要
申请公布号
US1818872(A)
申请公布日期
1931.08.11
申请号
US19290358380
申请日期
1929.04.26
申请人
EDMUND SPROSTON
发明人
SPROSTON EDMUND
分类号
A47L11/20
主分类号
A47L11/20
代理机构
代理人
主权项
地址
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