Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7234704 | Wiping and/or sealing element as well as process for sealing a piston and clamping and/or support element | Matthias Ehrhardt | 2007-06-26 |
| 4695047 | T-slot hydraulic clamp system | Winfried Ehrhardt, Klaus Richter | 1987-09-22 |