Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4509772 | One-piece adjusting sleeve | Frederick L. Drotar, David R. Wotton, Lawrence A. Makowski | 1985-04-09 |
| 4243339 | Adjustable kingpin assembly | — | 1981-01-06 |
| 4232880 | Adjusting sleeve for a wheel assembly | Robert Stevens | 1980-11-11 |
| 4231588 | Adjusting sleeve assembly | David R. Wotton, Lawrence A. Makowski | 1980-11-04 |