Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5076172 | Returning system for rail-bound transport carts without internal drive | Erwin Grimm, Christian Rene Koch, Helmut Pfenning, Hubert Christ | 1991-12-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5076172 | Returning system for rail-bound transport carts without internal drive | Erwin Grimm, Christian Rene Koch, Helmut Pfenning, Hubert Christ | 1991-12-31 |