Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5060427 | Extension and retraction system for four section telescopic boom having simultaneous and equal extension and retraction of the telescopic sections | — | 1991-10-29 |
| D299179 | Embossed telescopic crane boom section | — | 1988-12-27 |
| D299079 | Embossed telescopic crane boom | — | 1988-12-20 |
| 4490951 | Remotely operable latch and locking pin for a multi-section boom including a manual fly section | William R. Mentzer | 1985-01-01 |
| 4483447 | Safety mounting for side stowable boom extension or jib | — | 1984-11-20 |
| 4433515 | Remotely operable latch and locking pin for a multi-section boom including a manual fly section | William R. Mentzer | 1984-02-28 |