Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5678454 | Steering column | Mark A. Cartwright, Samuel G. Johnson | 1997-10-21 |
| 4923254 | Hydraulic parking brake control system | Duane R. Johnson | 1990-05-08 |
| 4285445 | Concentrate metering apparatus | Timothy A. Brown | 1981-08-25 |