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Changeable sign on a rear of a vehicle

  • US 20040226204A1
  • Filed: 05/12/2003
  • Published: 11/18/2004
  • Est. Priority Date: 05/12/2003
  • Status: Abandoned Application
First Claim
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1. A changeable electronic message display unit mounted at a rear of a vehicle, said message display unit is operated by a message sending unit located in a cab of said vehicle close to the driver of said vehicle.

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