Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5795233 | Universal joint | Peter Schwarzler, Hans-Heinrich Welschof | 1998-08-18 |
| 5704840 | Universal joint | Peter Schwarzler, Hans-Heinrich Welschof | 1998-01-06 |
| 5566777 | Upset tube | Jorg Trommer | 1996-10-22 |