MULTI-COLOURED CODES
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United States of America Patent
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Issued Date -
Jun 30, 2011
app pub date -
Aug 26, 2009
filing date -
Sep 10, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a method of storing information in or on an article, wherein the article comprises a colour former which is selectively irradiated to produce a multi-coloured code comprising at least three different colours. Also provided by the invention is an article comprising a multi-coloured code comprising at least three different colours, obtainable by the method of the invention.
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