Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834303 | Sharpening apparatus for forage harvester knives | Mark K. Chow | 1989-05-30 |
| 4799625 | Method and apparatus for adjusting a shear bar relative to a cutter head | Marvin G. Weaver, Jr., Carl E. Bohman, Richard P. Strosser, Mark K. Chow | 1989-01-24 |