Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879446 | Internal wire guide for GTAW welding | Gene E. Morgan | 1989-11-07 |
| 4839489 | Trailer shield assembly for a welding torch | — | 1989-06-13 |
| 4803339 | Hollow electrode and arc initiation method | Stephen S. Gordon, Lee A. Flanigan | 1989-02-07 |