Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863207 | Disc wheel, particularly for rail vehicles | Peter Wackerle, Franz Sperber | 1989-09-05 |
| 4803807 | Safety device for a door system | Horst Stockermann, Herman Bohm, Wolfgang David | 1989-02-14 |