Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4403328 | DC Arc furnace power connection system | Erik Lassander | 1983-09-06 |
| 4356340 | DC Arc furnace having a shielded arc | — | 1982-10-26 |
| 4336411 | Molten metal heating, stirring and casting apparatus | Bertil Hanas | 1982-06-22 |
| 4324943 | DC Arc furnace hearth construction | Bo Rappinger | 1982-04-13 |
| 4277638 | Prefabricated unit for a DC arc furnace | — | 1981-07-07 |
| 4228314 | DC Arc furnace hearth | — | 1980-10-14 |
| 4204082 | DC Arc furnace having starting electrode | — | 1980-05-20 |