Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304720 | Disk cartridge | Philip R. Ashe, James R. Carey, David L. Rowden | 1989-11-21 |
| 4858050 | Structurally rigid disk cartridge adaptable to eliminating relative axial cartridge and/or transducer head loading/unloading movement | Philip R. Ashe, James R. Carey, David L. Rowden | 1989-08-15 |
| 4805061 | Self-positioning write protect mechanism for a cartridge | David L. Rowden | 1989-02-14 |