Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10173871 | Winch hoist pull pin handle | David B. Hallen | 2019-01-08 |
| 8424846 | Overload warning system for a winch hoist | David B. Hallen | 2013-04-23 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10173871 | Winch hoist pull pin handle | David B. Hallen | 2019-01-08 |
| 8424846 | Overload warning system for a winch hoist | David B. Hallen | 2013-04-23 |