DH

David B. Hallen

📍 Rutland, MA: #28 of 54 inventorsTop 55%
🗺 Massachusetts: #42,150 of 88,656 inventorsTop 50%
Overall (All Time): #1,926,548 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10173871 Winch hoist pull pin handle Richard A. Perduta 2019-01-08
8424846 Overload warning system for a winch hoist Richard A. Perduta 2013-04-23