Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859649 | Semi-finished products of ferritic steel and catalytic substrate containing same | Kurt Bohnke, Helmut Brandis, Hans-Heinrich Domalski, Heinrich Frinken | 1989-08-22 |
| 4798631 | Metallic semi-finished product, processes for its preparation and its use | Klaus Lohscheidt, Dieter Gorres, Friedrich Behr | 1989-01-17 |