Portable Forge, patent, March 1, 1921; (https://texashistory.unt.edu/ark:/67531/metapth1257452/m1/1/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Portable Forge, patent, March 1, 1921; (https://texashistory.unt.edu/ark:/67531/metapth1257452/m1/1/: accessed July 1, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .