Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4261438 | Lift truck mast having high visibility and extensibility | — | 1981-04-14 |
| 4238004 | Hidden chain assembly for lift truck mast | — | 1980-12-09 |
| 4191276 | High-visibility two-stage mast assembly for lift trucks | Stanley E. Farmer | 1980-03-04 |