Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6708577 | Ball screw shaft with increased vibration frequency and improved vibration dissipation | Federico Perni | 2004-03-23 |
| 6672179 | Ball screw shaft, provided with vibration controlling means | Nicola Borgarelli, Federico Perni | 2004-01-06 |