Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5036736 | Method and apparatus for mar free handling of sheet steel | Ronald A. Hillock | 1991-08-06 |
| 4981061 | Steel rule die and method of manufacture | Ronald A. Hillock | 1991-01-01 |