Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863207 | Disc wheel, particularly for rail vehicles | Josef Grober, Franz Sperber | 1989-09-05 |
| 4805291 | Method for making a mold half for laminated parts | Michael Hahn, Peter Eschenfelder, Ralf-Thilo Schulz | 1989-02-21 |