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Optical document authentication system

  • US 20040258280A1
  • Filed: 06/23/2003
  • Published: 12/23/2004
  • Est. Priority Date: 06/23/2003
  • Status: Abandoned Application
First Claim
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1. An article of manufacture having applied thereto a group of marks arranged for associating a specific person with said article, the group of marks collectively being useful for identifying said person and said marks being collectively derived from physical characteristics of said person.

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