Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5391853 | Process for the roller seam welding of tanks and roller seam resistance-welding machine for carrying out the process | Walter Grau, Manfred Schlemmer | 1995-02-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5391853 | Process for the roller seam welding of tanks and roller seam resistance-welding machine for carrying out the process | Walter Grau, Manfred Schlemmer | 1995-02-21 |