Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6744013 | Welding torch for use in gas metal arc welding | — | 2004-06-01 |
| 4579790 | Electric storage batteries | John K. Humphreys, Joseph Valentine | 1986-04-01 |
| D270482 | Electric lamp | — | 1983-09-06 |