Valved Coupling for Train-Pipes., patent, August 22, 1899; (https://texashistory.unt.edu/ark:/67531/metapth512267/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Valved Coupling for Train-Pipes., patent, August 22, 1899; (https://texashistory.unt.edu/ark:/67531/metapth512267/m1/2/: accessed July 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .