CM

Christopher J. McCallum

SH Shur-Co: 1 patents #9 of 18Top 50%
📍 Yankton, SD: #29 of 93 inventorsTop 35%
🗺 South Dakota: #678 of 2,308 inventorsTop 30%
Overall (All Time): #2,087,795 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8141498 Rail car extension system Derrick K. Barr, David J. Schaefer 2012-03-27
6513856 Roll assist mechanism for tarp systems Bradford Paul Swanson 2003-02-04