Motor, patent, April 6, 1915; (https://texashistory.unt.edu/ark:/67531/metapth858192/m1/5/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Motor, patent, April 6, 1915; (https://texashistory.unt.edu/ark:/67531/metapth858192/m1/5/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .