Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6022427 | Method for producing helical springs | Gerhard Mier | 2000-02-08 |
| 4730815 | Leaf-spring | Eckart von Estorff | 1988-03-15 |
| 4377280 | Cylindrical helical compression spring | Horst Beihammer | 1983-03-22 |