Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4432584 | Trenching machine for cutting preferably frozen ground | Stepan K. Vartanov, Rudolf G. Isupov, Vladimir R. Malko, Eino A. Mark, Aref I. Belozerov +5 more | 1984-02-21 |