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Electronic vouchers and a system and method for issuing the same

  • US 20030014363A1
  • Filed: 06/25/2002
  • Published: 01/16/2003
  • Est. Priority Date: 06/25/2001
  • Status: Active Grant
First Claim
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1. An electronic voucher comprising:

  • image data defining an image;

    nonimage data embedded in the image that uniquely identifies the electronic voucher.

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