Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4489643 | Safety control device for protecting hydraulically supported loads against uncontrolled lowering and lifting | Harry Spielvogel | 1984-12-25 |
| 4433612 | Safety control device for protecting hydraulically held loads against uncontrolled pressure overloading | Harry Spielvogel | 1984-02-28 |
| 4294103 | Overload safety device in hydraulic forming presses, in particular sheet metal form drawing presses | Willi Funck, Roland Verheyen | 1981-10-13 |