Power of observation invisible ink game
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 8, 1993
Grant Date -
N/A
app pub date -
Jun 1, 1992
filing date -
Jun 1, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A power of observation game including two sets of visible images with each set including visible images substantially corresponding and with a preselected portion of at least one corresponding image of one set of visible images being visibly incomplete with the completing portion being printed invisibly to be artistically developed visible by an observing participant with a marking member to confirm correctness.
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Family
International Classification(s)
Cited Art Landscape
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