Treadle Power., patent, February 26, 1884; (https://texashistory.unt.edu/ark:/67531/metapth170713/m1/1/: accessed June 19, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Treadle Power., patent, February 26, 1884; (https://texashistory.unt.edu/ark:/67531/metapth170713/m1/1/: accessed June 19, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .