Saw-Filing Machine., patent, April 22, 1913; (https://texashistory.unt.edu/ark:/67531/metapth853801/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Saw-Filing Machine., patent, April 22, 1913; (https://texashistory.unt.edu/ark:/67531/metapth853801/m1/1/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .