Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4418715 | Pressure limiting valve, particularly for hydraulic mine props | Karoly Balazs, Miklos Frcska, Laszlo V. Gal, Sandor Hlavay, Lajos Huber +5 more | 1983-12-06 |
| 4291718 | Pressure valve | Sergei A. Sanin, Jury F. Ponomarenko, Vladimir N. Khorin, Arnold M. Ragutsky, Boris N. Kostjunin +1 more | 1981-09-29 |