Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4498322 | Thread-rolling tool | Stepan P. Shamenko | 1985-02-12 |
| 4491002 | Method for forming on workpiece resilient thread having closed helical cavity inside the thread | Stepan P. Shamenko, Rostislav P. Didyk, Anatoly A. Toropov | 1985-01-01 |
| 4426870 | Method and tool for making elastic thread having closed helical cavity inside thread profile | Stepan P. Shamenko, Georgy L. Tsvirko, Viktor G. Oleinichenko, Georgy A. Khitun, Anatoly I. Menyailenko | 1984-01-24 |
| 4409698 | Tap for pressing elastic thread profiles | Stepan P. Shamenko, Valery G. Badyaev | 1983-10-18 |