Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4377310 | Method of underground working of ore deposits and handling ore | Ivan P. Gubin, Sergei G. Machavariani, Nikolai S. Efremovtsev, Alexandr V. Mozolev, Sergei Nikolaev +8 more | 1983-03-22 |