Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820414 | Cyclone separator | Gavan J. J. Prendergast | 1989-04-11 |
| 4816165 | Liquid separating method | Gavan J. J. Prendergast | 1989-03-28 |
| 4809000 | Transom member for sliding doors | — | 1989-02-28 |