Number | Date | Country | Kind |
---|---|---|---|
01559/78 | Jan 1978 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
2115962 | Orme | May 1938 | |
2497341 | Bisson | Feb 1950 | |
3374558 | Smith | Mar 1968 | |
3514110 | Thomander | May 1970 | |
3748752 | Quercetti | Jul 1973 | |
4059274 | Samson | Nov 1977 |
Number | Date | Country |
---|---|---|
1009675 | May 1977 | CAX |
899926 | Sep 1944 | FRX |
167194 | Apr 1934 | CHX |
Entry |
---|
Master Mind Championships, Feb. 1976, Games & Puzzles, pp. 10, 11. |
And Now, Master Mind, p. 73, Time Magazine, Dec. 1, 1975. |