Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7197968 | Screwdriver with adjustable device to limit transmitted torque | — | 2007-04-03 |
| 5024126 | Slip-resistant plastic surface and process for producing such | Horst Holland-Letz | 1991-06-18 |