Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4664204 | Fixing mechanism for a wireline core barrel of core drilling equipment | Nikolay D. Nenkov, Stoyko P. Peev | 1987-05-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4664204 | Fixing mechanism for a wireline core barrel of core drilling equipment | Nikolay D. Nenkov, Stoyko P. Peev | 1987-05-12 |