Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5253738 | Safety disc brake for lifts | Toni Bissig | 1993-10-19 |
| 5148893 | Gearless drive machine for elevators | Andrzej Cholinski | 1992-09-22 |
| 4306637 | Shoe brake | Emil Keiser, Ljudevit Tomse | 1981-12-22 |