Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4468553 | Automatic chain welding apparatus | Joel D. Mallett | 1984-08-28 |
| 4461471 | Walker | — | 1984-07-24 |
| 4388513 | High voltage welding | Joel D. Mallett, Douglas J. Livingston | 1983-06-14 |
| 4215262 | Automatic percussion welding apparatus with stud feed | — | 1980-07-29 |