| 发明名称 |
Lottery game tickets and methods for making same |
| 摘要 |
The present invention relates to lottery game tickets and methods for making the same. In one embodiment, a wavelength-sensitive addition is incorporation in game ticket play area. In another embodiment, reflectance characteristics of a game ticket play area are controlled.
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| 申请公布号 |
US2002053597(A1) |
申请公布日期 |
2002.05.09 |
| 申请号 |
US20010989360 |
申请日期 |
2001.11.20 |
| 申请人 |
WELCH ALLYN DATA COLLECTION, INC. |
发明人 |
EHRHART MICHAEL A.;HUSSEY ROBERT M.;DUEKER TODD A.;SANCHEZ CAYETANO;SZREK WALTER;ABRAITIS JOHN C.;LAMBERT CLAUDE;GOUGEON FRANCOIS;BOULAY ROBERT;MONDOU DENIS |
| 分类号 |
A63F3/06;G06K17/00;G06K19/073;G07D7/20;(IPC1-7):G06K19/00 |
主分类号 |
A63F3/06 |
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