Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5549302 | Athletic projectile and target training device | Jeffry G. Lapsker, Conrad Jaroszewski | 1996-08-27 |
| 4501347 | Segmented disc brake pad | Frank T. Cerny | 1985-02-26 |
| 4386469 | Railroad car wheel gauge | — | 1983-06-07 |