Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4494448 | Composite piston of positive displacement hydraulic machine and method for manufacturing same | Vitaly A. Eystratov, Mikhail Y. Elkin, Ivan M. Stepunin, Nikolai E. Tsenta, Sergei A. Rud +1 more | 1985-01-22 |