Coop or Crate, patent, January 12, 1909; (https://texashistory.unt.edu/ark:/67531/metapth513412/m1/4/: accessed July 14, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Coop or Crate, patent, January 12, 1909; (https://texashistory.unt.edu/ark:/67531/metapth513412/m1/4/: accessed July 14, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .