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发明名称
Ventilator hood with collapsible bonnet
摘要
申请公布号
US3087411(A)
申请公布日期
1963.04.30
申请号
US19610093485
申请日期
1961.03.06
申请人
NUTONE, INC.
发明人
SPEAR WALTER A.;TURNER CHARLES ROBERT;MEEKER CLEVELAND F.
分类号
F24C15/20
主分类号
F24C15/20
代理机构
代理人
主权项
地址
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