Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398080 | Arc welding power source | Jan G. Johansson, Christian J. Henningsen | 1983-08-09 |
| 4309642 | Device for feeding a wire electrode | Knut F. I. Boden, Christian J. Henningsen | 1982-01-05 |