Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398871 | Movable end plate for a vacuum pump | — | 1983-08-16 |
| 4336004 | Movable end plate for a vacuum pump | — | 1982-06-22 |
| 4223903 | Integral suspension member | James K. Roberts | 1980-09-23 |