Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877666 | Magneto-optic substrates | Bernd Fischer | 1989-10-31 |
| 4861671 | Magneto-optic recording media with protective layer | Frank H. Robertson, III | 1989-08-29 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877666 | Magneto-optic substrates | Bernd Fischer | 1989-10-31 |
| 4861671 | Magneto-optic recording media with protective layer | Frank H. Robertson, III | 1989-08-29 |