Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4465407 | Fixing bridge | Karl-Heinz Plester, Friedrich Eggenstein | 1984-08-14 |
| 4449859 | Mineral mining installation | Karl-Heinz Plester, Harry Rosenberg, Friedrich Eggenstein | 1984-05-22 |
| 4379424 | Devices for limiting the stroke of a hydraulic ram used in mining apparatus | Harry Rosenberg, Karl-Heinz Plester, Friedrich Eggenstein | 1983-04-12 |