Interlocking-Bar Grating for Jails., patent, November 25, 1902; (https://texashistory.unt.edu/ark:/67531/metapth514644/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Interlocking-Bar Grating for Jails., patent, November 25, 1902; (https://texashistory.unt.edu/ark:/67531/metapth514644/m1/1/: accessed June 20, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .