Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4253868 | Apparatus for nitriding metal materials and ferroalloys under pressure | Ivan Dimov Nikolov, Tzolo V. Rashev, Iliya G. Chorbov, Ivan M. Peychev, Hristo G. Penchev +1 more | 1981-03-03 |