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Machine-differentiatable identifiers having a commonly accepted meaning

  • US 20060209043A1
  • Filed: 06/24/2005
  • Published: 09/21/2006
  • Est. Priority Date: 03/18/2005
  • Status: Active Grant
First Claim
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1. A system comprising:

  • at least two machine-differentiatable identifiers, each identifier of the at least two machine-differentiatable identifiers being respectively keyed to a data recipient and associatable with a hand-formed mark on a surface; and

    a commonly accepted meaning respectively associated by a group of users with each machine-differentiatable identifier of the at least two machine-differentiatable identifiers.

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