| Number | Name | Date | Kind |
|---|---|---|---|
| 4380334 | Minkoff et al. | Apr 1983 | |
| 5601488 | Kadlic | Feb 1997 | |
| 5653635 | Breeding | Aug 1997 |
| Number | Date | Country |
|---|---|---|
| 3-71914 | Nov 1991 | JPX |
| 2507126 | Jun 1992 | JPX |
| Entry |
|---|
| Translation of JP 3-71914 by Schreiber Translations, Inc, 13 pages. |
| Translation of JP 2507126 by Schreiber Translations, Inc. 13 pp. |
| Solitaire Game for Microsoft Windows version 3.1, copyright 1985-1993, developed by Wes Cherry, 4 pp. |
| Whitnet, Eleanor Noss, "A Mah Jong Handbook, How to Play, Score, and Win the Modern Game", Charles E. Tuttle Company, Inc., Rutland Vermont and Tokyo Japan, 1964. |