| 摘要 |
A multi-state flashing button and method of conducting a lottery using such a button. One or more multi-state buttons including an internal timer are distributed along with a relatively large number of single-state flashing buttons. The timer causes the multi-state buttons to change from a flashing state to non-flashing state at the end of a predetermined time-out interval, and a prize is awarded to each participant having a button which undergoes such a change of state.
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