Wheel., patent, April 21, 1914; (https://texashistory.unt.edu/ark:/67531/metapth859583/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Wheel., patent, April 21, 1914; (https://texashistory.unt.edu/ark:/67531/metapth859583/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .