Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645131 | Device for joining threaded rods and tubular casing elements forming a string of a drilling rig | — | 1997-07-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645131 | Device for joining threaded rods and tubular casing elements forming a string of a drilling rig | — | 1997-07-08 |