Automatic Reversing Mechanism, patent, April 30, 1912; (https://texashistory.unt.edu/ark:/67531/metapth514797/m1/1/: accessed May 14, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Automatic Reversing Mechanism, patent, April 30, 1912; (https://texashistory.unt.edu/ark:/67531/metapth514797/m1/1/: accessed May 14, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .