| Number | Name | Date | Kind |
|---|---|---|---|
| 4648062 | Johnson et al. | Mar 1987 | |
| 4701130 | Whitney et al. | Oct 1987 | |
| 4789962 | Berry et al. | Dec 1988 | |
| 5018082 | Obata et al. | May 1991 | |
| 5029113 | Miyoshi et al. | Jul 1991 | |
| 5157768 | Hoeber et al. | Oct 1992 | |
| 5165012 | Crandall et al. | Nov 1992 | |
| 5175812 | Krieger | Dec 1992 | |
| 5276801 | Heyen et al. | Jan 1994 | |
| 5287448 | Nicol et al. | Feb 1994 |
| Entry |
|---|
| The Speller/Thesaurus chapter of the operation manual for WordPerfect Version 4.2 (1986), pp. 2-15. |