Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7287721 | Winding tube | Dieter Quick | 2007-10-30 |
| 4672323 | Device for measuring the internal pressure of an operationally built built-in vacuum switch | Wilfried Kuhl, Leonhard Klug, Wolfgang Schilling | 1987-06-09 |