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Tokenless slot machine system

  • US 4,880,237 A
  • Filed: 12/29/1987
  • Issued: 11/14/1989
  • Est. Priority Date: 11/30/1987
  • Status: Expired due to Term
First Claim
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1. A slot machine system comprising:

  • a game data processing unit which is provided with;

    an input unit having a keyboard for inserting input data, said input data including a user'"'"'s identification code and number of game media available for wagering,a storage unit in which said input data is readably stored,an operation unit for performing arithmetic processing of said input data,a printer for printing said input data and an incorrect version of said input data on opposing sides of a card, said printer being able to provide the card to a user, anda first display for displaying said input data and the results of said arithmetic processing; and

    a slot machine body which is provided with;

    a pattern display mechanism comprising three or more second displays on which patterns are displayed,a start means for changing said patterns,a stop means for stopping the changing of said patterns,a win decision unit for deciding whether a pattern line of said stopped pattern display mechanism wins a game and for supplying the output to said data processing unit,a write unit for recording said input data and the results of said arithmetic processing performed in said game data processing unit, anda data entry unit having a keyboard for receiving entered data including a user'"'"'s identification code and a number of game media to be wagered by the identified user, said number of game media to be wagered not being predetermined by said system, whereby said fame can be started when the identification code in said input data corresponds to the identification code in said entered data and the number of game media to be wagered is no more than the game media available for wagering.

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