Packing-Ring for Piston-Rods., patent, September 2, 1913; (https://texashistory.unt.edu/ark:/67531/metapth854056/m1/2/: accessed July 13, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Packing-Ring for Piston-Rods., patent, September 2, 1913; (https://texashistory.unt.edu/ark:/67531/metapth854056/m1/2/: accessed July 13, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .