Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966624 | Method and apparatus for electric refining of lead | Ivan D. Enchev, Elieser P. Illel, Georgi N. Korudanov | 1990-10-30 |
| 4264405 | Apparatus for the mechanical separation of cathode metal from a matrix | Peter I. Petrov, Ivan D. Enchev, Kiril G. Harisanov, Georgi N. Korudanov, Georgi I. Abrashev | 1981-04-28 |