Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807897 | Hydraulic piston and process for its surface treatment | Alfred Birkenbach, Rolf Weiler, Martina Wagner, Jan Elwart | 2004-10-26 |
| 6702098 | Device to feed work pieces using gripping rails | Klemens Nock | 2004-03-09 |