Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4481552 | Disc unit for information recording and/or reading system | Marinus J. J. Dona, Adrianus J. J. Franken | 1984-11-06 |
| 4358801 | Disk unit with rotatable circular information disk | Johannes W. Faber | 1982-11-09 |