Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7159707 | Pusher for scraper chain conveyors, especially for underground mining | Richard Dobek | 2007-01-09 |
| 6595351 | Pusher for scraper chain conveyors, especially for underground mining | — | 2003-07-22 |