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Electronic floor display cleaning system and protective cover

  • US 6,940,418 B2
  • Filed: 02/26/2003
  • Issued: 09/06/2005
  • Est. Priority Date: 05/04/1999
  • Status: Expired due to Fees
First Claim
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1. An apparatus, comprising:

  • an electronic display associated with a floor, the electronic display device configurable to display an electronically modifiable verbal message;

    a protective cover for the electronic display; and

    a device associated with the protective cover, for at least one of preventing damage to the protective cover and removing dirt from over the electronic display.

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  • 7 Assignments
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