Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887501 | Stabilizer ply trimmer | Donald O. Still | 1989-12-19 |
| 4858505 | Pivotable knife | Donald O. Still, Hubert T. Hovance | 1989-08-22 |
| 4857123 | Method for ply application | Donald O. Still, Hubert T. Hovance | 1989-08-15 |
| 4824515 | Ply applicator | Donald O. Still, Hubert T. Hovance | 1989-04-25 |