Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863147 | Vehicle N2/oil suspension with external damping orifice adjustment | Richard L. Hoffelmeyer, Jeffrey A. Jackson | 1989-09-05 |
| 4843910 | Pinion gear speed disc brake | Terrence L. Doden, Ronald R. Massie | 1989-07-04 |