Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5058655 | Method and apparatus for manufacturing of a thick-walled hollow casting of cast iron | Helmut Derp, Elmar Schlich | 1991-10-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5058655 | Method and apparatus for manufacturing of a thick-walled hollow casting of cast iron | Helmut Derp, Elmar Schlich | 1991-10-22 |