Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4418715 | Pressure limiting valve, particularly for hydraulic mine props | Karoly Balazs, Vladislav D. Firstov, Miklos Frcska, Laszlo V. Gal, Lajos Huber +5 more | 1983-12-06 |