Public address system
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Claims
The ornamental design for a public address system, as shown and described.
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Type: Grant
Filed: Jul 5, 2011
Date of Patent: Jun 12, 2012
Assignee: Gentex Corporation (Simpson, PA)
Inventor: Theodore A. Polito (Windham, NH)
Primary Examiner: Prabhakar Deshmukh
Attorney: Morgan, Lewis & Bockius LLP
Application Number: 29/396,666