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发明名称
Air filter
摘要
申请公布号
US2548942(A)
申请公布日期
1951.04.17
申请号
US19470752920
申请日期
1947.06.06
申请人
ELECTROLUX CORPORATION
发明人
BROWN RAYMOND L.
分类号
A47L9/12;B01D46/10
主分类号
A47L9/12
代理机构
代理人
主权项
地址
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