Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4365676 | Method and apparatus for drilling laterally from a well bore | Andrew B. Campbell | 1982-12-28 |
| 4348920 | Well pipe connecting and disconnecting apparatus | — | 1982-09-14 |
| 4346631 | Well pipe spinning and torqueing apparatus | — | 1982-08-31 |