Folding Cot., patent, March 16, 1920; (https://texashistory.unt.edu/ark:/67531/metapth1256916/m1/5/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Folding Cot., patent, March 16, 1920; (https://texashistory.unt.edu/ark:/67531/metapth1256916/m1/5/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .