Gate Operating Device, patent, December 29, 1903; (https://texashistory.unt.edu/ark:/67531/metapth508661/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Gate Operating Device, patent, December 29, 1903; (https://texashistory.unt.edu/ark:/67531/metapth508661/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .