Linotype and Intertype, patent, February 11, 1919; (https://texashistory.unt.edu/ark:/67531/metapth1256710/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Linotype and Intertype, patent, February 11, 1919; (https://texashistory.unt.edu/ark:/67531/metapth1256710/m1/1/: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .