Pump, patent, October 24, 1916; (https://texashistory.unt.edu/ark:/67531/metapth857859/m1/4/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Pump, patent, October 24, 1916; (https://texashistory.unt.edu/ark:/67531/metapth857859/m1/4/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .