| Number | Name | Date | Kind |
|---|---|---|---|
| 1016821 | Exline | Feb 1912 | A |
| D276199 | Kwiecinski et al. | Nov 1984 | S |
| 5610798 | Lochridge | Mar 1997 | A |
| 5857415 | Richard | Jan 1999 | A |
| 6305766 | Lochridge | Oct 2001 | B1 |
| Entry |
|---|
| Modern Furniture, 1997, p. 28, #H at bottom center.* |
| Catalogue—Workspheres, p. 98. |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 09/952562 | Sep 2001 | US |
| Child | 29/149708 | US |