Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5483036 | Method of automatic measurement and focus of an electron beam and apparatus therefor | Warren H. Giedt | 1996-01-09 |
| 4950864 | DC arc weld starter | James Hopwood | 1990-08-21 |