Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4991664 | Compression-vacuum percussive action machine | Jury N. Kolgan, Nikolai M. Kirjushin, Ivan A. Prokhorov, Vitold A. Kezik | 1991-02-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4991664 | Compression-vacuum percussive action machine | Jury N. Kolgan, Nikolai M. Kirjushin, Ivan A. Prokhorov, Vitold A. Kezik | 1991-02-12 |