Plow Attachment., patent, December 25, 1900; (https://texashistory.unt.edu/ark:/67531/metapth509862/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Plow Attachment., patent, December 25, 1900; (https://texashistory.unt.edu/ark:/67531/metapth509862/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .