Advertising Device., patent, August 9, 1898; (https://texashistory.unt.edu/ark:/67531/metapth513535/m1/1/: accessed April 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Advertising Device., patent, August 9, 1898; (https://texashistory.unt.edu/ark:/67531/metapth513535/m1/1/: accessed April 18, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .