Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883120 | Latching tool for retrieving wellbore devices | Lonnie J. Smith | 1989-11-28 |
| 4876672 | Ultrasonic logging tool with rotating exposed transducer | Steven G. Petermann | 1989-10-24 |
| 4856582 | Motorized wellbore fishing tool | Lonnie E. Smith | 1989-08-15 |