Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7766595 | Device and procedure for twisting a coil into perforations of flat components | Hartmut Lehmann | 2010-08-03 |
| 7494084 | Device and method to produce helical coils from a filament | Hartmut Lehmann | 2009-02-24 |