| Number | Name | Date | Kind |
|---|---|---|---|
| D209531 | Koch | Dec 1967 | |
| 857878 | Haynes | Jun 1907 | |
| 2200456 | Shultz | May 1940 | |
| 2724595 | Amann | Nov 1955 | |
| 2823036 | Worth | Feb 1958 | |
| 3204956 | Ames | Sep 1965 | |
| 3606336 | Krause | Sep 1971 | |
| 3724847 | Compton | Apr 1973 |
| Number | Date | Country |
|---|---|---|
| 123964 | Oct 1901 | DE2 |
| 15224 OF | Jan 1884 | GBX |
| Entry |
|---|
| Boggle.RTM. .COPYRGT.1973, Parker Brothers Trademark for its Hidden Word Game Equipment. |
| Scrabble.RTM. Playthings, Jan. 1956, p. 4. |