Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4400035 | Process for the extraction of thick coal seams | Karoly Barsi, Hugo Salamon, Andras Solymos, Istvan Toth | 1983-08-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4400035 | Process for the extraction of thick coal seams | Karoly Barsi, Hugo Salamon, Andras Solymos, Istvan Toth | 1983-08-23 |