Card with integrated overprinting
Cards and methods of securing hidden symbols on cards are disclosed. The cards, such as instant-win lottery tickets, utilize continuous overprint inks that mask the boundaries between their "secure" and "unsecure" portions to inhibit unscrupulous players from successfully tamperi...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
08.10.1996
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Edition | 6 |
Subjects | |
Online Access | Get full text |
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