Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4332317 | Scraper chain conveyor | Werner Boer, Jörg Richter, Gerald Seebacher, Hans Warnke | 1982-06-01 |
| 4203557 | Continuous-operation crushing machine | Reinhold Krohm | 1980-05-20 |