Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6159089 | Grinding system | Joseph Mielinski, Glenn R. Knowlton | 2000-12-12 |
| 6077156 | Grinding disc | Joseph Mielinski, Glenn R. Knowlton | 2000-06-20 |
| 5938514 | Disk attachment system | John P. Lefavour | 1999-08-17 |