Milk-Cooler., patent, July 3, 1900; (https://texashistory.unt.edu/ark:/67531/metapth514702/m1/1/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Milk-Cooler., patent, July 3, 1900; (https://texashistory.unt.edu/ark:/67531/metapth514702/m1/1/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .