Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339937 | Ring rolling mill | Erich Dittrich, Helmut Siewert | 1982-07-20 |
| 4326397 | Multiple mandrel-ring rolling machine | Robert J. Schilling, Dieter Adamaszek | 1982-04-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4339937 | Ring rolling mill | Erich Dittrich, Helmut Siewert | 1982-07-20 |
| 4326397 | Multiple mandrel-ring rolling machine | Robert J. Schilling, Dieter Adamaszek | 1982-04-27 |