Plow-Scraper., patent, July 7, 1896; (https://texashistory.unt.edu/ark:/67531/metapth174312/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Plow-Scraper., patent, July 7, 1896; (https://texashistory.unt.edu/ark:/67531/metapth174312/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .