DH

David W. Halsted

SE Stone Construction Equipment: 1 patents #4 of 21Top 20%
📍 Hemlock, NY: #9 of 21 inventorsTop 45%
🗺 New York: #48,759 of 115,490 inventorsTop 45%
Overall (All Time): #2,276,603 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5492401 Concrete mixer with plastic drum — 1996-02-20
5441341 Mortar mixer with plastic drum having reinforced end walls — 1995-08-15