Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849867 | Light fixture and louver construction | Herman van der Vaart | 1989-07-18 |
| 4821160 | Flanged louver construction | — | 1989-04-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849867 | Light fixture and louver construction | Herman van der Vaart | 1989-07-18 |
| 4821160 | Flanged louver construction | — | 1989-04-11 |