Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4240667 | Driving gear rack cleaner for a mining machine | Janusz Sedlaczek, Andrzej Blazewicz, Marian Krutki, Tadeusz Wozniak | 1980-12-23 |
| 4240668 | Driving device for mining machine | Janusz Sedlaczek, Andrzej Blazewicz, Marian Krutki, Tadeusz Wozniak | 1980-12-23 |