Plow Attachment, patent, December 5, 1916; (https://texashistory.unt.edu/ark:/67531/metapth858631/m1/1/: accessed July 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Plow Attachment, patent, December 5, 1916; (https://texashistory.unt.edu/ark:/67531/metapth858631/m1/1/: accessed July 11, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .