Aerating Churn, patent, August 1, 1905; (https://texashistory.unt.edu/ark:/67531/metapth510235/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Aerating Churn, patent, August 1, 1905; (https://texashistory.unt.edu/ark:/67531/metapth510235/m1/1/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .