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Electronic verification machine for documents

  • US 6,776,337 B2
  • Filed: 08/15/2002
  • Issued: 08/17/2004
  • Est. Priority Date: 06/22/1994
  • Status: Expired due to Term
First Claim
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1. A document verification mechanism comprising:

  • a document having at least one inductor printed in conductive ink; and

    a verification machine including;

    a detection circuit including a coil inductively coupled to said inductor printed on said document, and a processor operatively connected to said detection circuit for measuring the electrical signature of said inductor printed on said document.

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