Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4568812 | Device for electric longitudinal-seam mash resistance welding | Walter Panknin, Rolf Ruhl | 1986-02-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4568812 | Device for electric longitudinal-seam mash resistance welding | Walter Panknin, Rolf Ruhl | 1986-02-04 |