Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4635497 | Single lever shift | Robert L. Siewert | 1987-01-13 |
| 4630698 | Self-storing side panel | Robert L. Siewert | 1986-12-23 |
| 4629350 | Tolerance compensating joint | Robert L. Siewert | 1986-12-16 |
| 4607977 | Pivot joint | Robert L. Siewert | 1986-08-26 |
| 4507005 | Pivot joint | Robert L. Siewert | 1985-03-26 |