Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839756 | Apparatus for read/write head loading and unloading in a data recording disk file | David W. Chew, Willi A. Hagenlocher, Chentung R. Jih | 1989-06-13 |
| 4440515 | Keybar keyboard | — | 1984-04-03 |