Supporting Device for Umbrellas., patent, November 10, 1908; (https://texashistory.unt.edu/ark:/67531/metapth513834/m1/1/: accessed July 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Supporting Device for Umbrellas., patent, November 10, 1908; (https://texashistory.unt.edu/ark:/67531/metapth513834/m1/1/: accessed July 2, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .