Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4685475 | Monitoring rod | Peter Taylor, John Poley, Christopher W. Norvall, John Daniel Upton | 1987-08-11 |
| 4200828 | Pivoted arm control arrangement | Dexter R. Plummer | 1980-04-29 |