Hydraulic Pump, patent, March 7, 1905; (https://texashistory.unt.edu/ark:/67531/metapth514692/m1/1/: accessed April 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Hydraulic Pump, patent, March 7, 1905; (https://texashistory.unt.edu/ark:/67531/metapth514692/m1/1/: accessed April 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .