Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4515045 | Automatic wrench for screwing a pipe string together and apart | Viktor V. Gnatchenko, Nikolai P. Makarov, Albert S. Shaginian, Alexei G. Asan-Dzhalalov, Anatoly A. Pevnev +4 more | 1985-05-07 |