Nut and Bolt Lock., patent, November 13, 1894; (https://texashistory.unt.edu/ark:/67531/metapth173838/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Nut and Bolt Lock., patent, November 13, 1894; (https://texashistory.unt.edu/ark:/67531/metapth173838/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .