Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819999 | End face seal assembly | Richard E. Livesay, Robert J. Purcell | 1989-04-11 |
| 4636014 | Master track chain connection for crawler tractors | Thomas M. Dennison | 1987-01-13 |