Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4422626 | Apparatus for repairing a refractory furnace lining | Alfred Romar, Albert Rigler | 1983-12-27 |
| 4238076 | Apparatus for building up and repairing the refractory lining of industrial furnaces and hot-running vessels | Franz Weiss, Franz Waisnix, Werner Zach | 1980-12-09 |
| 4199108 | Apparatus for building up and repairing a refractory lining | Karl H. Fernow, Franz Waisnix, Franz Weiss, Werner Zach | 1980-04-22 |