Car-Coupling., patent, April 4, 1893; (https://texashistory.unt.edu/ark:/67531/metapth173371/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Car-Coupling., patent, April 4, 1893; (https://texashistory.unt.edu/ark:/67531/metapth173371/m1/1/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .