Well Cleaning Machine., patent, April 24, 1900; (https://texashistory.unt.edu/ark:/67531/metapth511088/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Well Cleaning Machine., patent, April 24, 1900; (https://texashistory.unt.edu/ark:/67531/metapth511088/m1/3/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .