Pump-Operated Device, patent, May 28, 1901; (https://texashistory.unt.edu/ark:/67531/metapth511717/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Pump-Operated Device, patent, May 28, 1901; (https://texashistory.unt.edu/ark:/67531/metapth511717/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .