Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4429820 | Apparatus for feeding wire over large distances | Dimiter A. Ivanov | 1984-02-07 |
| 4417127 | Method and apparatus for seam tracking in arc welding | Georgi N. Nachev, Boryan I. Petkov | 1983-11-22 |
| 4305537 | Apparatus for feeding wire through great distances | David A. Samokovliiski, Dimiter A. Ivanov, Simeon G. Punchev | 1981-12-15 |