Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5076172 | Returning system for rail-bound transport carts without internal drive | Christian Rene Koch, Volker Hausler, Helmut Pfenning, Hubert Christ | 1991-12-31 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5076172 | Returning system for rail-bound transport carts without internal drive | Christian Rene Koch, Volker Hausler, Helmut Pfenning, Hubert Christ | 1991-12-31 |