发明名称 Plug-in speaker for emergency notification and voice evacuation
摘要 An alarm indicating output appliance can be releasably affixed to a mounting plate. The plate carries wire receiving terminals which couple to the appliance. In the absence of the appliance, at least two of the terminals can be short circuited.
申请公布号 US7791496(B2) 申请公布日期 2010.09.07
申请号 US20070770244 申请日期 2007.06.28
申请人 HONEYWELL INTERNATIONAL INC. 发明人 ANDERSON DOUGLAS J.;DAVIDSON CURTIS R.;VOJINOVIC BOJANA
分类号 G08B7/00;G08B3/10;G08B5/36;G08B21/00 主分类号 G08B7/00
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