Printed document including bar code authentication system
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United States of America Patent
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-
Oct 30, 2001
Grant Date -
N/A
app pub date -
Oct 16, 1995
filing date -
Oct 16, 1995
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A printed document in which a bar code is imprinted on a surface thereof and entirely covered with a scratch-off layer, the removal of the scratch-off layer reveals the entire bar code thereby enabling easy authentication of the printed document.
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