Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6134787 | Method of producing a rail-bound rail vehicle for passenger transport | Helmut Elsner, Ferdinand Tegeler | 2000-10-24 |
| 5918548 | Rail vehicle | Helmut Elsner, Ferdinand Tegeler | 1999-07-06 |
| 4427398 | Device for coupling and uncoupling two parts movable relative to each other using a length-variable guide rod | Helmut Ruppert | 1984-01-24 |