Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4899438 | Assembly device for pressing C-shaped sheet metal nut onto a plate | Klaus Müller, Lothar Escher, Gerhard Mack | 1990-02-13 |
| 4793753 | C-shaped sheet-metal nut | Klaus Müller, Lothar Escher, Gerhard Mack | 1988-12-27 |