Pipe-Holder, patent, July 7, 1919; (https://texashistory.unt.edu/ark:/67531/metapth1259450/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Pipe-Holder, patent, July 7, 1919; (https://texashistory.unt.edu/ark:/67531/metapth1259450/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .