Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5439335 | Apparatus for cutting a keyway in a mill roll | Gary L. Curtis, Gregory A. Johnson | 1995-08-08 |
| 5439435 | Method for cutting a keyway in a mill roll | Gary L. Curtis, Gregory A. Johnson | 1995-08-08 |
| 5247740 | Method and apparatus for cutting a keyway in a mill roll | Gary L. Curtis, Gregory A. Johnson | 1993-09-28 |