Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5144990 | Switch in overhung rail systems | Johannes-Gerhard Spoeler | 1992-09-08 |
| 4762069 | Rail with suspension and conductor holding claws | Johannes-Gerhard Spoeler | 1988-08-09 |
| 4646647 | Suspension of rails | Johannes Gerhard Spoler | 1987-03-03 |