Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4273989 | Battery powered thermal garment with fast and efficent recharging circuit | Jean G. French | 1981-06-16 |
| 4247743 | Device for preventing unauthorized usage of appliance | David T. Mage | 1981-01-27 |