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Electronic display device for use in motor cars

  • US 4,293,842 A
  • Filed: 07/25/1979
  • Issued: 10/06/1981
  • Est. Priority Date: 07/31/1978
  • Status: Expired due to Term
First Claim
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1. An electronic display device for use in a motor car, comprising manually operated switch means for changing contents displayed by said display device, and a control circuit actuated by a signal generated by an engine key switch of said motor car, said control circuit including means responsive to the operation of said manually operated switch means for switching over the contents displayed by said display device.

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