Printing method for printing optically readable code on printing medium, using printing plate and printed matter bearing printed and optically readable code
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United States of America Patent
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-
Oct 16, 2007
Grant Date -
Jun 27, 2002
app pub date -
Nov 15, 2001
filing date -
Dec 13, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A dot code is printed on a sheet of paper by using a first printing plate and a first ink. Immediately thereafter, a code coat is formed by printing to cover the dot code, by using a second printing plate and a second ink having a property of not affecting the operation of reading the code.
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