Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6071181 | Knife sharpening machine | John Wightman, Dennis Peth, Jim Campbell, William M. Haack | 2000-06-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6071181 | Knife sharpening machine | John Wightman, Dennis Peth, Jim Campbell, William M. Haack | 2000-06-06 |