Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4796143 | Electric transformer for underground mining machine | Horst Odenkirchen | 1989-01-03 |
| 4514011 | Power and liquid supply system for mining machines | Friedhelm Schefers | 1985-04-30 |