Lubricating Device, patent, August 12, 1914; (https://texashistory.unt.edu/ark:/67531/metapth858745/m1/2/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Lubricating Device, patent, August 12, 1914; (https://texashistory.unt.edu/ark:/67531/metapth858745/m1/2/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .