Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5234376 | Spiral spring of a torsional damper | Michael Otto, Jerry F. Baremor, Warren G. Bopp | 1993-08-10 |
| 5226514 | Mounting for rotating spiral spring | Michael Otto | 1993-07-13 |