Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7915752 | Apparatus for enabling an aerial lift including a self-disabling interlock | — | 2011-03-29 |
| 5746286 | Hydraulic boom platform leveling system | — | 1998-05-05 |
| 4917214 | Aerial lift bucket rotation device including bucket leveling means | William K. Holmes | 1990-04-17 |
| 4858723 | Bucket leveling system | William K. Holmes | 1989-08-22 |
| 4763800 | Mobile lifting apparatus | Edgar D. Engler, Gus J. Weber, Melvin G. Stapel, Leonard Gordon Hanson | 1988-08-16 |