Mud Guard., patent, August 25, 1914; (https://texashistory.unt.edu/ark:/67531/metapth858000/m1/2/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Mud Guard., patent, August 25, 1914; (https://texashistory.unt.edu/ark:/67531/metapth858000/m1/2/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .