Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5481079 | Compact gas tungsten arc welding torch apparatus | Thomas Erichsen, Gary L. Boerman, Daniel J. Richard | 1996-01-02 |
| 5285042 | Gas tungsten arc welding torch apparatus | Thomas Erichsen, Gary L. Boerman, Daniel J. Richard | 1994-02-08 |