US Patent 7791496 Plug-in speaker for emergency notification and voice evacuation
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Patent abstract
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.
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US Patent 07791496 Plug-in speaker for emergency notification and voice evacuation US Patent 7791496 Plug-in speaker for emergency notification and voice evacuation
Infobox
Patent Number
0779149600
Patent Number
779149600
Edits on 23 Apr, 2023
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
077914960
Date of Patent
September 7, 2010
0Patent Application Number
117702440
Date Filed
June 28, 2007
0Official Website
Patent Primary Examiner
Edits on 22 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
077914960
Date of Patent
September 7, 2010
0Patent Application Number
117702440
Date Filed
June 28, 2007
0Official Website
Patent Primary Examiner
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US Patent 07791496 Plug-in speaker for emergency notification and voice evacuation
Infobox
Is a
Patent jurisdiction
Patent number
07791496
Date of patent
September 7, 2010
Patent application number
11770244
Date Filed
June 28, 2007
Patent primary examiner
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