Street-Sweeping Machine., patent, May 8, 1906; (https://texashistory.unt.edu/ark:/67531/metapth511283/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Street-Sweeping Machine., patent, May 8, 1906; (https://texashistory.unt.edu/ark:/67531/metapth511283/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .