| 摘要 |
Stacks of sets of number identified Bingo tickets are produced by first stacking different main sheets containing numbered Bingo tickets arranged six by six, and (1) cutting the first stack along a medial vertical cut line, stacking the substacks and cutting the resulting stack along horizontal lines between successive ticket rows and stacking the resulting substacks; (2) cutting the first stack along a medial horizontal line, stacking the substacks and cutting the resulting stack along vertical lines between successive ticket rows and stacking the resulting substacks; or (3) cutting the first stack along a pair of parallel lines between success pairs of tickets, stacking the substacks, cutting the resulting stack along a pair of parallel lines perpendicular to the first cut lines and stacking the resulting two by two ticket substacks. The identifying numbers are so sequenced and the stacking so effective that the numbers identifying corresponding tickets in successive sets may be progressive.
|
