Stone Dressing Machine, patent, December 11, 1906; (https://texashistory.unt.edu/ark:/67531/metapth513216/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Stone Dressing Machine, patent, December 11, 1906; (https://texashistory.unt.edu/ark:/67531/metapth513216/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .