Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966624 | Method and apparatus for electric refining of lead | Ivan D. Enchev, Lyuben R. Starev, Georgi N. Korudanov | 1990-10-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966624 | Method and apparatus for electric refining of lead | Ivan D. Enchev, Lyuben R. Starev, Georgi N. Korudanov | 1990-10-30 |