Car Coupling., patent, May 13, 1884; (https://texashistory.unt.edu/ark:/67531/metapth170748/m1/1/: accessed May 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Car Coupling., patent, May 13, 1884; (https://texashistory.unt.edu/ark:/67531/metapth170748/m1/1/: accessed May 21, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .