Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5361846 | Apparatus and method for enhancing fatigue properties of subterranean well drill pipe immediate the area of securement to a tool joint | Frank J. Carlin | 1994-11-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5361846 | Apparatus and method for enhancing fatigue properties of subterranean well drill pipe immediate the area of securement to a tool joint | Frank J. Carlin | 1994-11-08 |