Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4933073 | Drum for separating castings and molding sand or the like | Cornelis O. Jonkers | 1990-06-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4933073 | Drum for separating castings and molding sand or the like | Cornelis O. Jonkers | 1990-06-12 |