Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4383581 | Tool for drilling boreholes | Vladimir D. Butkin, Vadim D. Petukhov | 1983-05-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4383581 | Tool for drilling boreholes | Vladimir D. Butkin, Vadim D. Petukhov | 1983-05-17 |