发明名称 Ventilator for removing smoke and heat from buildings has flap which is opened by gas spring and is closed by cable wound on to reel by electric motor
摘要 <p>The ventilator for removing smoke and heat from buildings has a flap (6) which is opened by a gas spring (12). It is closed by a cable (24) which is wound on to a reel by an electric motor (22).</p>
申请公布号 DE202005010625(U1) 申请公布日期 2006.11.16
申请号 DE20052010625U 申请日期 2005.07.06
申请人 COLT INTERNATIONAL LICENSING LTD. 发明人
分类号 F24F7/02;F24F13/14 主分类号 F24F7/02
代理机构 代理人
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