Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797386 | Superconductor-magnet induced separation | Frances Hellman, David W. Johnson | 1989-01-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4797386 | Superconductor-magnet induced separation | Frances Hellman, David W. Johnson | 1989-01-10 |