Apparatus for printing and for forming a hologram on sheet material
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United States of America Patent
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-
Apr 2, 1991
Issued Date -
N/A
app pub date -
Aug 23, 1989
filing date -
Apr 18, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A technique and apparatus for printing that includes the formation of a hologram, or other type of diffraction pattern, directly on a desired end product of paper, or other sheet material. The hologram, or other diffraction pattern, is formed by casting a surface relief pattern directly onto the sheet material in a limited area.
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