| 摘要 |
<p>The lottery ticket control system has several pre-printed grids each having several squares, a certain number of which have been selected by the player. The system has at least a card support on which is reproduced near to one of its edges the complete design of a several square control grid. The control grid is identical to the pre-printed grid on the lottery ticket. The part of the card support on which the grid is reproduced is made from an easily perforated material. The card supports dimensions are slightly greater than the dimensions of the control grid reproduced on the card but slightly less than the dimensions of the lottery ticket. The system has a method for perforating the card supports control grid. This consists of pincers into which the card can be slide and held before a lower jaw carrying a tooth is pressed into a square of the grid.</p> |
