End and encoded mass distributable response piece and method of making the same
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United States of America Patent
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Aug 11, 1992
Issued Date -
N/A
app pub date -
Dec 10, 1990
filing date -
Oct 31, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of simultaneously encoding successive groups of printed paper sheets or mass distributable material wherein the sheets are provided with unperceptable and virtually invisible common code pattern by laser means which is supplied with a distinct series of coded pulse signals in synchronism with control pulses to produce a different optically-scannable coded hole pattern on each group of printed sheets.
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Cited Art Landscape
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