Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883722 | Brass-coated steel elements having improved rubber adhesion properties | Wilfried Coppens, Hugo Lievens | 1989-11-28 |
| 4863571 | Method of testing for corrosion | — | 1989-09-05 |
| 4841119 | Welding wire | — | 1989-06-20 |