Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4259919 | Apparatus for coating graphite electrodes | Todor Yankov Koychev, Georgi M. Georgiev, Alexander Y. Valchev | 1981-04-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4259919 | Apparatus for coating graphite electrodes | Todor Yankov Koychev, Georgi M. Georgiev, Alexander Y. Valchev | 1981-04-07 |