Patent Grant
D393530
| Number | Name | Date | Kind |
|---|---|---|---|
| D239960 | Miyazaki | May 1976 | |
| D241866 | Miyazaki | Oct 1976 | |
| D270868 | Spirk, Jr. et al. | Oct 1983 | |
| D283075 | Spirk, Jr. et al. | Mar 1986 | |
| D288499 | Wan | Feb 1987 | |
| D296029 | Knox | May 1988 | |
| D347929 | Perkitny | Jun 1994 | |
| D359152 | Adams et al. | Jun 1995 | |
| D378464 | Perkitny | Mar 1997 | |
| 3161351 | Lerner | Dec 1964 | |
| 3242931 | Wandrey | Mar 1966 | |
| 3313477 | Brown | Apr 1967 | |
| 3338250 | Mehelich | Aug 1967 | |
| 3387616 | Bortz et al. | Jun 1968 | |
| 3410385 | Freet et al. | Nov 1968 | |
| 4479502 | Iversen | Oct 1984 | |
| 4511341 | Spirk, Jr. et al. | Apr 1985 | |
| 4987990 | Perkitny | Jan 1991 | |
| 5122093 | Perkitny | Jun 1992 | |
| 5474496 | Perkitny | Dec 1995 |
| Number | Date | Country |
|---|---|---|
| 2130779 | Jun 1984 | GBX |
| Entry |
|---|
| MAGNIF Just For Fun catalog entitled "Magnif Banks Puzzles Games Gifts" (8 double sided sheets) (1994). |
