Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5749269 | Dual-mode, viscous crankshaft vibration damper | John George Szymanski, Fredrick Richard Roland | 1998-05-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5749269 | Dual-mode, viscous crankshaft vibration damper | John George Szymanski, Fredrick Richard Roland | 1998-05-12 |