Portable Dairy., patent, May 1, 1894; (https://texashistory.unt.edu/ark:/67531/metapth173716/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Portable Dairy., patent, May 1, 1894; (https://texashistory.unt.edu/ark:/67531/metapth173716/m1/1/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .