U.S. federal trademark · Serial No. 74618258
Electrical lighting system consisting of electronic circuitry for detecting light source failures, communicating light source failures to a user, regulating light output, multiplexing signals to illuminate alternate light sources in the event of a light source failure, and detecting and communicating anti-lock braking system failures and the like, and light sources, namely, light emitting diodes, incandescent lamps, fluorescent lamps, and neon lamps all sold as a unit
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