Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887872 | Track adjuster flow control mechanism | Carl P. Adams, William J. Spivey, Jr. | 1989-12-19 |
| 4881930 | Sprocket assembly | — | 1989-11-21 |
| 4818041 | Idler wheel assembly for track-type vehicle | — | 1989-04-04 |