Type Writing Machine., patent, December 30, 1890; (https://texashistory.unt.edu/ark:/67531/metapth172563/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Type Writing Machine., patent, December 30, 1890; (https://texashistory.unt.edu/ark:/67531/metapth172563/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .