Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4458950 | Energy supply unit for winning machines pulled by a traction mechanism for mining operations | Karl H. Schwarting, Josef Aholt, Karl Herrmann, Hans Johenning, Willi Kupper +1 more | 1984-07-10 |