Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5529746 | Process for the manufacture of high-density powder compacts | Walter Knoss | 1996-06-25 |
| 5391853 | Process for the roller seam welding of tanks and roller seam resistance-welding machine for carrying out the process | Walter Grau, Tomislav Matievic | 1995-02-21 |