Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6026934 | Hydraulic lift with yoked cylinders | — | 2000-02-22 |
| 5320047 | Desk having self-releveling height adjustment and hydraulic circuit therefor | Roger L. Betten | 1994-06-14 |