Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869756 | Process for carburizing a steel workpiece | Ewald Schwing, Horst Uhrner | 1989-09-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869756 | Process for carburizing a steel workpiece | Ewald Schwing, Horst Uhrner | 1989-09-26 |