Water-Valve., patent, April 12, 1910; (https://texashistory.unt.edu/ark:/67531/metapth511705/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Water-Valve., patent, April 12, 1910; (https://texashistory.unt.edu/ark:/67531/metapth511705/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .