Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4402205 | Apparatus for forming helical springs | Vladimir K. Yakovlev, Vasily A. Ivankov | 1983-09-06 |
| 4302959 | Method of forming helical springs | Vladimir K. Yakovlev, Vasily A. Ivankov | 1981-12-01 |