Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4869811 | Rotor for magnetically sorting different metals | Richard R. Osterberg | 1989-09-26 |
| 4834870 | Method and apparatus for sorting non-ferrous metal pieces | Richard R. Osterberg | 1989-05-30 |