Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5035292 | Whipstock starter mill with pressure drop tattletale | Thomas F. Bailey, John E. Campbell | 1991-07-30 |
| 4550781 | Method of and apparatus for cutting and recovering of submarine surface casing | — | 1985-11-05 |