Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803605 | Flashlight with a backup system | David R. Schaller, El-Sayed Megahed, Tor Petterson | 1989-02-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803605 | Flashlight with a backup system | David R. Schaller, El-Sayed Megahed, Tor Petterson | 1989-02-07 |