Rail-Joint., patent, March 31, 1908; (https://texashistory.unt.edu/ark:/67531/metapth511393/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Rail-Joint., patent, March 31, 1908; (https://texashistory.unt.edu/ark:/67531/metapth511393/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .