Cotton Scraper., patent, October 19, 1886; (https://texashistory.unt.edu/ark:/67531/metapth171370/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Cotton Scraper., patent, October 19, 1886; (https://texashistory.unt.edu/ark:/67531/metapth171370/m1/1/: accessed June 30, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .