Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697620 | Seal assembly having first and second seals acting in series | David R. McMurtry | 1997-12-16 |
| 5647137 | Probe arm for machine tool | David R. McMurtry, Andrew James Harding, Stephen E. Lummes, Martin P. Spivey | 1997-07-15 |