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经营范围
发明名称
Air filter
摘要
申请公布号
US1788171(A)
申请公布日期
1931.01.06
申请号
US19250071967
申请日期
1925.11.28
申请人
AMERICAN AIR FILTER COMPANY
发明人
STEBBINS LIVINGSTON
分类号
B01D46/12
主分类号
B01D46/12
代理机构
代理人
主权项
地址
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