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Assignee: Don Gilbert Industries, Inc.


Location: Jonesboro, AR
No. of patents: 1

NumberTitleIssue Date
4682147Emergency sign
An illuminated exit sign having a plurality of series connected light emitting diodes arranged to form the word "exit" and a control circuit for supplying power to the series connected diodes from line power and, during power failures, from battery power....
07/21/1987
 
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