Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804884 | Display tube having improved brightness distribution | Leendert Vriens, Johannes H. M. Spruit | 1989-02-14 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804884 | Display tube having improved brightness distribution | Leendert Vriens, Johannes H. M. Spruit | 1989-02-14 |