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| Number | Title | Issue Date |
| 6247643 | Gaming machine system operable with general purpose charge cards In a gaming establishment, a player feeds a general purpose charge card such as a VISA, MasterCard or AMERICAN EXPRESS card to a reader at a gaming machine or enters on a keyboard or other input device, information relating to the general purpose charge c... | 06/19/2001 |
| 6019283 | Gaming machine system operable with general purpose charge cards In a gaming establishment, a player feeds a general purpose charge card such as a VISA, MasterCard or AMERICAN EXPRESS card to a reader at a gaming machine or enters on a keyboard or other input device, information relating to the general purpose charge c... | 02/01/2000 |
| 5959277 | Gaming machine system operable with general purpose charge cards A player feeds a general purpose charge card, such as a VISA, MasterCard or AMERICAN EXPRESS card, or an account identification to a reader at a gaming machine or enters on a keyboard or other input device, information relating to the general purpose char... | 09/28/1999 |
| 5952640 | Gaming machine system operable with general purpose charge cards In a gaming establishment, a player feeds a general purpose charge card such as a VISA, MasterCard or AMERICAN EXPRESS card to a reader at a gaming machine or enters on a keyboard or other input device, information relating to the general purpose charge c... | 09/14/1999 |
| 5811772 | Gaming machine system operable with general purpose charge cards A player feeds a general purpose charge card, such as a VISA, MasterCard or AMERICAN EXPRESS card, or an account identification to a reader at a gaming machine or enters on a keyboard or other input device, information relating to the general purpose char... | 09/22/1998 |
| 5559312 | Gaming machine system operable with general purpose charge cards In a gaming establishment, a player feeds a general purpose charge card such as a VISA, MasterCard or AMERICAN EXPRESS card to a reader at a gaming machine or enters on a keyboard or other input device, information relating to the general purpose charge c... | 09/24/1996 |
| 5457306 | Gaming machine system operable with general purpose charge cards In a casino, a player feeds a general purpose charge card such as a VISA, MasterCard or AMERICAN EXPRESS card to a reader at a slot machine or other gaming machine, and keys in a desired amount of playing credit and a PIN (personal identification number) ... | 10/10/1995 |
