Portable Type-Distributer., patent, August 4, 1891; (https://texashistory.unt.edu/ark:/67531/metapth172756/m1/2/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Portable Type-Distributer., patent, August 4, 1891; (https://texashistory.unt.edu/ark:/67531/metapth172756/m1/2/: accessed June 27, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .