Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6971481 | Hydraulic elevator with motor controlled hydraulic drive and method for controlling the hydraulic elevator | Richard von Holzen | 2005-12-06 |
| 6957721 | Hydraulic elevator with an accumulator | — | 2005-10-25 |