Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5690485 | Combustion system for a steckel mill | William J. Mangham, Donald N. Mohr | 1997-11-25 |
| 5556273 | Combustion system for a steckle mill | William J. Mangham, Donald N. Mohr | 1996-09-17 |