Press-Sweep, patent, May 3, 1910; (https://texashistory.unt.edu/ark:/67531/metapth511089/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Press-Sweep, patent, May 3, 1910; (https://texashistory.unt.edu/ark:/67531/metapth511089/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .