Planter, patent, September 20, 1919; (https://texashistory.unt.edu/ark:/67531/metapth1259045/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Planter, patent, September 20, 1919; (https://texashistory.unt.edu/ark:/67531/metapth1259045/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .