Draft-Equalizer, patent, May 14, 1901; (https://texashistory.unt.edu/ark:/67531/metapth514004/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Draft-Equalizer, patent, May 14, 1901; (https://texashistory.unt.edu/ark:/67531/metapth514004/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .