| Number | Name | Date | Kind |
|---|---|---|---|
| D310071 | Kit | Aug 1990 | |
| D321377 | Ko | Nov 1991 | |
| D330703 | Cheung et al. | Nov 1992 | |
| D335909 | Swanson et al. | May 1993 |
| Entry |
|---|
| 1989 Video Technology Industries, Inc. Catalog, p. 6. |
| 1991 Video Technology Electronics, Ltd. Ctalog, p. 5, top item. |
| Advantech Flyer for "I.Q. Unlimited" (1991). |