Printed matter – Having revealable concealed information – fraud preventer or... – By removeable material
Patent
1994-08-12
1997-09-16
Han, Frances
Printed matter
Having revealable concealed information, fraud preventer or...
By removeable material
283903, B42D 1500
Patent
active
056672500
ABSTRACT:
Security of game cards such as instant lottery tickets can be improved by locating a confusion pattern below a primer layer on the game cards substrate and by locating another confusion pattern on a release coat above the game card play indica. Game card security can be further enhanced by using confusion pattern ink that bleeds through the game card in response to the application of various solvents.
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Behm William F.
Litman Stanley
Tevis Mark C.
Walton Bradley W.
Han Frances
McMurry Michael B.
Ryan Kathleen Anne
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