Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6663030 | Replaceable grate device for maximizing the throughput of solid material in ore mills | Jeffrey H. Washburn | 2003-12-16 |
| 6082646 | Fastening system for liner assemblies of ore mills | Ronald C. Clarke, Jeffrey H. Washburn | 2000-07-04 |