Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920698 | Powered sliding truck cab window | Donald E. Friese, James W. Brown, E. G. LeVan, Michael Smith | 1990-05-01 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4920698 | Powered sliding truck cab window | Donald E. Friese, James W. Brown, E. G. LeVan, Michael Smith | 1990-05-01 |