发明名称 LOUVER WITH MAXIMUM FREE AREA
摘要 Louver With Maximum Free Area The cross sections of louver blades are located exclusively within zones defined primarily by concentric arcs configured to maintain a substantially equal spacing between the boundaries of the zones of adjacent blades throughout the width of the louver.
申请公布号 CA2057500(A1) 申请公布日期 1992.07.03
申请号 CA19912057500 申请日期 1991.12.12
申请人 CONSTRUCTION SPECIALTIES, INC. 发明人 OLSEN, ROBERT W.
分类号 E06B7/082;E06B7/084;F24F13/08;F24F13/15;(IPC1-7):F24F13/08 主分类号 E06B7/082
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