SECURITY DOCUMENTS AND METHODS OF DETERRING COUNTERFEITING
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United States of America Patent
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app pub date -
Jun 30, 2009
filing date -
Jul 17, 2007
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Abandoned
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Abstract
Apparatus and methods are described for a security document comprising a border formed at least partially by a plurality of microprint characters. At least a portion of the microprint characters are arranged in a curvilinear pattern, and at least a portion of the microprint characters are not substantially reproducible via a digital imaging device.
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