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经营范围
发明名称
Room ventilating method and apparatus
摘要
申请公布号
US2979265(A)
申请公布日期
1961.04.11
申请号
US19560631732
申请日期
1956.12.31
申请人
AMERICAN AIR FILTER COMPANY, INC.
发明人
STOCK CHARLES S.
分类号
F24F11/08
主分类号
F24F11/08
代理机构
代理人
主权项
地址
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