Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5072773 | Mold and method for making variable hardness castings | Gary F. Ruff, Karl D. Voss, James L. De Rupa | 1991-12-17 |
| 4509740 | Sheet stacking system | Anthony Foresi | 1985-04-09 |