Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5184873 | Guides for mineral winning machines | — | 1993-02-09 |
| 5167438 | Guides for mineral winning ploughs | Gerhard Siepenkort, Bernd Steinkuhl | 1992-12-01 |
| 5139313 | Guides for mineral winning ploughs | Christoph Rassmann | 1992-08-18 |
| 5033604 | Connections between the pans of scraper-chain conveyors | Bernd Steinkuhl, Christoph Rassmann | 1991-07-23 |