发明名称 Exit signs with and without emergency lighting
摘要 Emergency signs and combination emergency signs and emergency lights wherein the combination signs are compact for shipment and are energy efficient using first interior light emitting diodes, powered by an AC power source, for illumination of messages formed in at least one side wall of the emergency signs and having at least one emergency light emitting diode lamp for providing emergency lighting in the event of AC power failure and wherein the at least one emergency light emitting diode lamp, in some embodiments, is selectively deployable and adjustable relative to the signs, and in others, is fixedly mounted relative to the signs.
申请公布号 US7520072(B2) 申请公布日期 2009.04.21
申请号 US20070798033 申请日期 2007.05.09
申请人 YU WILLIAM 发明人 YU WILLIAM
分类号 G09F13/04 主分类号 G09F13/04
代理机构 代理人
主权项
地址
您可能感兴趣的专利