Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4222445 | Reduction unit of drilling motor | Jury V. Vadetsky, Nikolai D. Derkach, Ernst N. Krutik, Georgy F. Chudakov, Alexandr P. Natarov +3 more | 1980-09-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4222445 | Reduction unit of drilling motor | Jury V. Vadetsky, Nikolai D. Derkach, Ernst N. Krutik, Georgy F. Chudakov, Alexandr P. Natarov +3 more | 1980-09-16 |