Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4843512 | Recording disk centering hub | Larry Dean Moore, Vurnen J. Leonard | 1989-06-27 |
| 4809104 | Recording head and support arm for stretched surface recording medium | James K. Knudsen | 1989-02-28 |