Saw Filing Machine, patent, January 29, 1907; (https://texashistory.unt.edu/ark:/67531/metapth512549/m1/1/: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Saw Filing Machine, patent, January 29, 1907; (https://texashistory.unt.edu/ark:/67531/metapth512549/m1/1/: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .