Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5692307 | Rotary knife blade | Robert L. Leimbach, G. Daniel Harper | 1997-12-02 |
| 5667427 | Method and apparatus for sharpening curved blades | Forrest A. Airhart | 1997-09-16 |
| 5664332 | Hand knife with cover | Robert L. Leimbach | 1997-09-09 |