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Class Information
Number: 463/21
Name: Amusement devices: games > Including means for processing electronic data (e.g., computer/video game, etc.) > In a chance application > Lot match or lot combination (e.g., roulette, lottery, etc.) > Plural lots (e.g., keno, etc.) > Lot-to-lot combination (e.g., slot machine, etc.) > Having means to alter combination probability
Description: Lot-to-lot combination further including means for adjusting the likelihood of either a match between lots or a particular combination of plural lots.

Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
5169147 Stop-control device of rotary gaming machine Dec. 8, 1992
5154421 Stop-control method of reels in a rotary gaming machine and its apparatus Oct. 13, 1992
5108099 Slot machine with multiple symbol selection Apr. 28, 1992
5102134 Multiple tier random number generator Apr. 7, 1992
5085436 Slot machine with long and short pseudo reel strip Feb. 4, 1992
5083785 Win control method and apparatus for game machines Jan. 28, 1992
5074559 Slot machine Dec. 24, 1991
5067712 Multiple-pull slot machine Nov. 26, 1991
5050881 Slot machine Sep. 24, 1991
4993713 Game machine Feb. 19, 1991
4991848 Gaming machine with a plateaued pay schedule Feb. 12, 1991
4858932 Nonuniform probability reel stop mechanism for gaming machines Aug. 22, 1989
4711451 Reel mapping scheme for a gaming device Dec. 8, 1987
4679143 Control device for game machine Jul. 7, 1987
4657256 Slot machine with win/loss biasing means Apr. 14, 1987
4573681 Slot machine with random number generation Mar. 4, 1986
4448419 Electronic gaming device utilizing a random number generator for selecting the reel stop positions May. 15, 1984

1 2 3 4 5 6 7 8 9 10

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