SECURITY DOCUMENTS AND METHODS OF DETERRING COUNTERFEITING
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United States of America Patent
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Issued Date -
Jan 22, 2009
app pub date -
Jul 17, 2007
filing date -
Jul 17, 2007
priority date (Note) -
Abandoned
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Abstract
Apparatus and methods are described for a security document that includes an area of microprinting a pattern of microprint and a three-dimensional appearing image. The three-dimensional appearing image is formed within the area of microprinting by one or more deviations from the pattern of microprint. In addition, the area of microprinting and the three-dimensional appearing image are not reproducible via a digital imaging device.
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