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发明名称
Air filter
摘要
申请公布号
US1829344(A)
申请公布日期
1931.10.27
申请号
US19300482973
申请日期
1930.09.19
申请人
DURREN MERLE P
发明人
DURREN MERLE P.
分类号
F24H9/00
主分类号
F24H9/00
代理机构
代理人
主权项
地址
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