Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5115658 | Shaping machine for cylindrically bending a plate | Wilhelm Kirchhoff, Simon Schneider | 1992-05-26 |
| 4735076 | Process for the production of a conical shell using sheet metal bending rolls | Heinz Ludwig | 1988-04-05 |