Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4497503 | Hydraulic control system for vehicle | — | 1985-02-05 |
| 4213652 | Linear locking seat belt retractor | David F. Manz, John T. Auman | 1980-07-22 |
| 4200308 | Linear locking seat belt retractor | David F. Manz | 1980-04-29 |