Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682956 | Dual member pipe joint for a dual member drill string | Cody L. Sewell | 1997-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682956 | Dual member pipe joint for a dual member drill string | Cody L. Sewell | 1997-11-04 |