Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362554 | Method and apparatus for manufacturing sponge iron | — | 1982-12-07 |
| 4362555 | Method and apparatus for manufacturing sponge iron | Borje Johansson | 1982-12-07 |
| 4340420 | Method of manufacturing stainless steel | John O. Edstrom | 1982-07-20 |
| 4310350 | Recovering non-volatile metals from dust containing metal oxides | — | 1982-01-12 |