| Number | Name | Date | Kind |
|---|---|---|---|
| 86173 | Maynard | Jan 1869 | A |
| 601523 | Orchard | Mar 1898 | A |
| 1333432 | Maier | Mar 1920 | A |
| D131498 | Vogl | Mar 1942 | S |
| D197534 | Friedman | Feb 1964 | S |
| 4352489 | Wagster | Oct 1982 | A |
| 5118058 | Richter | Jun 1992 | A |
| 5946150 | Liao | Aug 1999 | A |
| Entry |
|---|
| Two photographs of WMH Tool Group's Model 63500 2¾ Vacuum Base Vise, which was in public use or on sale prior to Aug. 20, 2001. |