New device signaling plays for recreational machines with prize, which is essentially characterized by the fact of comprising two or more almost signaling, preferably four, such as allowing the display of a display, or the image of a projector, play show each of them, randomly, rotating roller windows, any one of the ten digits of the decimal system, that is from 0 to 9, establishing precisely prize position for some or all the plays in which the number formed by the digits appears is read just as from left to right as from right to left, that is, it forms a number of the kind commonly referred to as capicua. (Machine-translation by Google Translate, not legally binding)
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