Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162619 | Drill rod or adaptor with strengthened spigot coupling | Petri Ahola, David E. Wickstrom | 2021-11-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162619 | Drill rod or adaptor with strengthened spigot coupling | Petri Ahola, David E. Wickstrom | 2021-11-02 |