| Number | Name | Date | Kind |
|---|---|---|---|
| 3243047 | Witteborg | Mar 1966 | A |
| D219940 | Leath | Feb 1971 | S |
| D221814 | Leath | Sep 1971 | S |
| D279045 | Hall | Jun 1985 | S |
| 5632390 | Podergois | May 1997 | A |
| D387943 | Fink | Dec 1997 | S |
| D441989 | Potthoff | May 2001 | S |
| 6382433 | Podergois | May 2002 | B1 |
| Entry |
|---|
| Display device formed from two rectangular open-faced support structures. |