Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5212614 | Flexible magnetic disc cassettes with separable cassette cases | Patrick M. Hughes, Thaddeus R. Dudzik | 1993-05-18 |
| 5164871 | Shutters with integrally molded spring elements for flexible magnetic disc cassettes | Patrick M. Hughes | 1992-11-17 |