Stalk-Chopping Device, patent, February 4, 1913; (https://texashistory.unt.edu/ark:/67531/metapth514809/m1/5/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Stalk-Chopping Device, patent, February 4, 1913; (https://texashistory.unt.edu/ark:/67531/metapth514809/m1/5/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .