Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4711290 | Method and apparatus for casting iron treated with magnesium | Rolf Rietzscher, Max Riethmann | 1987-12-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4711290 | Method and apparatus for casting iron treated with magnesium | Rolf Rietzscher, Max Riethmann | 1987-12-08 |