Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827129 | Sweep device for a storage luminescent screen | Guenther Tressl | 1989-05-02 |
| 4801188 | Light guide optics | Gunther Tressl | 1989-01-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827129 | Sweep device for a storage luminescent screen | Guenther Tressl | 1989-05-02 |
| 4801188 | Light guide optics | Gunther Tressl | 1989-01-31 |