Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336218 | Method for recovering residual matter accumulated in the production and machining of steel | Hans-Helmut Borggrefe, Klaus Unger | 1982-06-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4336218 | Method for recovering residual matter accumulated in the production and machining of steel | Hans-Helmut Borggrefe, Klaus Unger | 1982-06-22 |