Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359866 | Rotatable controller system | — | 1982-11-23 |
| 4355505 | Rotatable controller valve | Karl-Heinz Liebert | 1982-10-26 |
| 4354350 | Hydrostatic auxiliary power steering | Karl-Heinz Liebert | 1982-10-19 |
| 4344283 | Hydrostatic auxiliary power steering | Karl-Heinz Liebert, Christoph Deppenbrock | 1982-08-17 |