Vaughn Manufacturing Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5708589 Error recovery system for an energy controller for an electric water heaterExpiredApr 08, 96Jan 13, 98[H02J, G06F]
4998024 Energy controlling system for time shifting electric power useExpiredApr 01, 88Mar 05, 91[H04B]

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