Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5332164 | Materials grinder | — | 1994-07-26 |
| 4418762 | Balanced implement transport vehicle | — | 1983-12-06 |
| 4309228 | Electro magnetic steels | Alan Coombs | 1982-01-05 |
| 4306922 | Electro magnetic steels | Alan Coombs | 1981-12-22 |