Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834889 | Torque release coupling for use in drill strings | Egil Sunde, Per Olav Haughom | 2004-12-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834889 | Torque release coupling for use in drill strings | Egil Sunde, Per Olav Haughom | 2004-12-28 |