Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4549469 | Hydraulic ram | Karl-Heinz Plester, Klaus-Dieter Reddig | 1985-10-29 |
| 4523512 | Telescopic support props for mineral mining | Karl-Heinz Plester | 1985-06-18 |
| 4457212 | Hydraulic ram | Eberhart Unger, Herbert Heitkamp, Karl-Heinz Plester, Manfred Lagodka | 1984-07-03 |