FS

Frederick J. Silbernagel

📍 Huron, SD: #2 of 46 inventorsTop 5%
🗺 South Dakota: #319 of 2,308 inventorsTop 15%
Overall (All Time): #1,057,625 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D346388 Articulated self-propelled bi-directional soil stabilizer road reclaimer machine 1994-04-26
5192178 Extensible discharge chute assembly 1993-03-09
D291547 Cement mixer truck 1987-08-25
D271875 Front discharge mixer truck with auxiliary rear axle 1983-12-20
4314709 Load transfer trailer for transit mixer 1982-02-09