| Number | Date | Country | Kind |
|---|---|---|---|
| 64-184880 | Jul 1989 | JPX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3973245 | Belser | Aug 1976 | |
| 4433377 | Eustis et al. | Feb 1984 | |
| 4485439 | Rothstein | Nov 1984 | |
| 4586158 | Brandle | Apr 1986 | |
| 4642790 | Minshull et al. | Feb 1987 |
| Number | Date | Country |
|---|---|---|
| 62-194532 | Aug 1987 | JPX |
| Entry |
|---|
| Tools for Building Advanced User Interfaces by J. L. Bennett. |
| Creating Highly-Interactive & Graphical User Interfaces by B. A. Myers/W. Buxton. |
| Hutwindows: An Improved Architecture . . . by M. R. Koivunen/M. Mantyla. |