Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7104105 | Method and apparatus for producing a threaded projection on a plate-shaped workpiece | Stephan Büttner, Thomas Muller-Hirsch, Jürgen Döttling, Gerhard Hammann | 2006-09-12 |