Woodworking-Clamp., patent, October 14, 1913; (https://texashistory.unt.edu/ark:/67531/metapth854068/m1/4/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Woodworking-Clamp., patent, October 14, 1913; (https://texashistory.unt.edu/ark:/67531/metapth854068/m1/4/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .