Mechanical Movement, patent, April 4, 1905; (https://texashistory.unt.edu/ark:/67531/metapth512857/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Mechanical Movement, patent, April 4, 1905; (https://texashistory.unt.edu/ark:/67531/metapth512857/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .