Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4803861 | Guide structure for pierced hollows | Rolf Kuemmerling, Manfred Mueller, Wilhelm Nickel | 1989-02-14 |
| 4638655 | Holding and guiding a mandrel rod in rolled stock in and adjacent to a tube rolling mill | Wilhelm Sebastian, Wilhelm Nickel | 1987-01-27 |
| 4505692 | Traction device for buffering tubes | Jürgen BOOS, Achim Homersen | 1985-03-19 |