 
                 Patent Grant
 Patent Grant
                     4560163
 4560163
                    | Number | Name | Date | Kind | 
|---|---|---|---|
| 1593421 | Blum | Jul 1926 | |
| 1819932 | Walden | Aug 1931 | 
| Number | Date | Country | 
|---|---|---|
| 211511 | Sep 1940 | CHX | 
| 336188 | Aug 1930 | GBX | 
| Entry | 
|---|
| The New York Times 12-11-1966, p. 525, Hockey Game of Fun. | 
| Reader's Digest Assoc., Inc. Book of 1000 Family Games, pp. 228-229, Box Hockey. |