Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D281250 | Combined electrode drive and nozzle unit for an automatic air carbon-arc cutting and gouging torch | David E. Johnson, Kenneth E. McCall | 1985-11-05 |
| 4527037 | Electrode drive and nozzle system for an automatic air carbon-arc cutting and gouging torch | David E. Johnson, Kenneth E. McCall | 1985-07-02 |