"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 6874783 | Single game variant of accumulation lotto A variation of a lottery-type game of chance where each drawing is not only a stand-alone event, but each entry is also valid for a defined number of accumulation rounds. The numbers selected for the entry are then compared to a predefined number of consecutive draw... | 04/05/2005 |
| 6793219 | Accumulation variation of lottery-style games of chance A variation of a lottery-type game of chance where each drawing is not only a stand-alone event, but each entry is also valid for a defined number of accumulation rounds. The numbers selected for the entry are then compared to a predefined number of consecutive draw... | 09/21/2004 |