Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5982577 | Batteryless, spring-powered portable cassette player | Paul C. Brown | 1999-11-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5982577 | Batteryless, spring-powered portable cassette player | Paul C. Brown | 1999-11-09 |