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经营范围
发明名称
Vacuum cleaner
摘要
申请公布号
US2260325(A)
申请公布日期
1941.10.28
申请号
US19380222817
申请日期
1938.08.03
申请人
QUADREX CORPORATION
发明人
LEATHERS WARD
分类号
A47L9/04
主分类号
A47L9/04
代理机构
代理人
主权项
地址
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