Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5443140 | Method and apparatus for reducing the power required by an hydraulic elevator drive | Heinz-Dieter Nagel, Jorg Christians | 1995-08-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5443140 | Method and apparatus for reducing the power required by an hydraulic elevator drive | Heinz-Dieter Nagel, Jorg Christians | 1995-08-22 |