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发明名称
Blower construction
摘要
申请公布号
US2856836(A)
申请公布日期
1958.10.21
申请号
US19540447586
申请日期
1954.08.03
申请人
NUTONE, INC.
发明人
SPEAR WALTER A.
分类号
F04D25/16;F04D29/42;F24F13/075
主分类号
F04D25/16
代理机构
代理人
主权项
地址
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