Water-Heater, patent, December 29, 1908; (https://texashistory.unt.edu/ark:/67531/metapth509290/m1/1/: accessed July 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Water-Heater, patent, December 29, 1908; (https://texashistory.unt.edu/ark:/67531/metapth509290/m1/1/: accessed July 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .