Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4290800 | Process for feeding iron sponge into an electric arc furnace | Joachim Schwerdtfeger, Klaus Walden, Dieter Ameling | 1981-09-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4290800 | Process for feeding iron sponge into an electric arc furnace | Joachim Schwerdtfeger, Klaus Walden, Dieter Ameling | 1981-09-22 |