Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6415551 | Non friction direct drive powered telescoping bleacher seating system | — | 2002-07-09 |
| 6293053 | Non friction direct drive power system | — | 2001-09-25 |
| 4924660 | Adjustable stirrup bar | Melvin E. Norman | 1990-05-15 |