Locking Device for Motor Vehicles, patent, March 13, 1917; (https://texashistory.unt.edu/ark:/67531/metapth860100/m1/4/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Locking Device for Motor Vehicles, patent, March 13, 1917; (https://texashistory.unt.edu/ark:/67531/metapth860100/m1/4/: accessed July 6, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .