Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4754591 | Construction and repair of refractory structures, in particular heated structures | Arie J. Nuysink | 1988-07-05 |
| 4332554 | Shaft furnace having cooling plates | Jacobus Van Laar, Jacob Felthuis | 1982-06-01 |