|
| US4215864 | 2. Aug. 1978 | 5. Aug. 1980 | | Word puzzle game |
| US4285520 | 26. Sept. 1979 | 25. Aug. 1981 | | Mass circulation publication bingo type game |
| US4342457 | 12. Juni 1981 | 3. Aug. 1982 | | Method of playing a mass circulation publication bingo type game |
| US4509759 | 7. Juni 1982 | 9. Apr. 1985 | | Bingo game involving promotional coupons |
| US4619457 | 7. Febr. 1985 | 28. Okt. 1986 | | Bingo game involving promotional coupons |
| US4711454 | 27. Okt. 1986 | 8. Dez. 1987 | | Bingo game involving promotional coupons |
