Boiler Attachment., patent, May 31, 1910; (https://texashistory.unt.edu/ark:/67531/metapth512994/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Boiler Attachment., patent, May 31, 1910; (https://texashistory.unt.edu/ark:/67531/metapth512994/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .