Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828433 | Roof supports | Helmut Poklekowski, Klaus Reichelt | 1989-05-09 |
| 4815898 | Roof supports | Klaus Seeberger, Harry Rosenberg, Wolfgang Stradtmann | 1989-03-28 |
| 4379661 | Advance mechanism for a mine roof support unit | Mustafa Soliman, Juergen Schulte | 1983-04-12 |