Pipe-Wrench., patent, January 4, 1921; (https://texashistory.unt.edu/ark:/67531/metapth1256628/m1/2/: accessed July 5, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Pipe-Wrench., patent, January 4, 1921; (https://texashistory.unt.edu/ark:/67531/metapth1256628/m1/2/: accessed July 5, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .