Lever-Shears., patent, March 6, 1900; (https://texashistory.unt.edu/ark:/67531/metapth510928/m1/1/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Lever-Shears., patent, March 6, 1900; (https://texashistory.unt.edu/ark:/67531/metapth510928/m1/1/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .