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发明名称
Rotatable louver unit
摘要
申请公布号
US2759411(A)
申请公布日期
1956.08.21
申请号
US19510248737
申请日期
1951.09.28
申请人
PREWAY INC.
发明人
JENSON KENNETH S.
分类号
F24F13/065
主分类号
F24F13/065
代理机构
代理人
主权项
地址
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