Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4197557 | Brightness control circuit employing a closed control loop | Leopold A. Harwood, Willem H. Groenweg | 1980-04-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4197557 | Brightness control circuit employing a closed control loop | Leopold A. Harwood, Willem H. Groenweg | 1980-04-08 |