Driving-Gear for Vehicles., patent, August 23, 1910; (https://texashistory.unt.edu/ark:/67531/metapth512174/m1/1/: accessed May 13, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Driving-Gear for Vehicles., patent, August 23, 1910; (https://texashistory.unt.edu/ark:/67531/metapth512174/m1/1/: accessed May 13, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .