Cultivator., patent, August 9, 1898; (https://texashistory.unt.edu/ark:/67531/metapth511687/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Cultivator., patent, August 9, 1898; (https://texashistory.unt.edu/ark:/67531/metapth511687/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .