Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4446353 | Center tracking welder unit with floating reference | — | 1984-05-01 |
| 4255641 | Method of outside welding of pipelines | Eugene F. Sims | 1981-03-10 |
| 4201326 | Pivotal back-up pads for welding | — | 1980-05-06 |