Pump Rod Attachment, patent, September 24, 1907; (https://texashistory.unt.edu/ark:/67531/metapth510348/m1/1/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Pump Rod Attachment, patent, September 24, 1907; (https://texashistory.unt.edu/ark:/67531/metapth510348/m1/1/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .