| Number | Name | Date | Kind |
|---|---|---|---|
| RE34266 | Schairbaum | Jun 1993 | |
| 4250815 | Swanson | Feb 1981 | |
| 5044284 | Gross | Sep 1991 | |
| 5071204 | Price et al. | Dec 1991 | |
| 5125727 | Lechman et al. | Jun 1992 | |
| 5174224 | Nagy et al. | Dec 1992 | |
| 5290009 | Lechman | Mar 1994 | |
| 5294193 | Wegman et al. | Mar 1994 | |
| 5364177 | Ugalde | Nov 1994 | |
| 5408939 | Lechman | Apr 1995 | |
| 5419525 | Hilton | May 1995 | |
| 5437235 | Randolph | Aug 1995 | |
| 5480224 | Ugalde | Jan 1996 | |
| 5544594 | Schairbaum | Aug 1996 |
| Entry |
|---|
| M & M Industries, Product Catalog (1994) cover and pp. 6 and 7 (to be viewed side-by-side). |
| Studio, Product Catalog (1995) cover and p. 8. |
| Office Specialty, Platform. |