Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5183479 | Abrasive disks and method of making | — | 1993-02-02 |
| 4653236 | Coated abrasive disc | Philip M. Grimes | 1987-03-31 |
| 4554765 | Coated abrasive disc | Philip M. Grimes | 1985-11-26 |
| 4525177 | Method of making coated abrasive disc | Philip M. Grimes | 1985-06-25 |