Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4659264 | Drill and indexable carbide insert therefor | — | 1987-04-21 |
| 4350463 | Arrangement for mounting a cutter | — | 1982-09-21 |
| RE30908 | Cutting insert | Donald W. Warren | 1982-04-20 |
| 4244666 | Pin lock tool holder | Robert A. Erickson, Donald W. Warren | 1981-01-13 |