| Number | Name | Date | Kind |
|---|---|---|---|
| 5202828 | Vertelney et al. | Apr 1993 | |
| 5276816 | Cavendish et al. | Jan 1994 | |
| 5287448 | Nicol et al. | Feb 1994 |
| Number | Date | Country |
|---|---|---|
| 0269364 | Nov 1987 | EPX |
| Entry |
|---|
| Aaron Marcus et al., "User-Interface Developments for the Nineties", Computer, Sep. 21, 1991, pp. 49-57. |
| "Balloon Windows For Supplementary Dialogues and Information", IBM Technical Technical Disclosure Bulletin, Vol. 33 No. 10A, Mar. 1991. |
| Lotus.RTM. 1-2-3 for Windows (Sams), 1991, pp. 18,32-36. |
| Wordperfect for Windows (Trademark of Wordperfect Corporation), 1991, pp. 1-7. |