Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867227 | Process and apparatus for inoculating cast iron | Heiner Trager, Karl-Heinz Kleemann, Karl J. Reifferscheid | 1989-09-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867227 | Process and apparatus for inoculating cast iron | Heiner Trager, Karl-Heinz Kleemann, Karl J. Reifferscheid | 1989-09-19 |