Bit Cleaner, patent, February 17, 1920; (https://texashistory.unt.edu/ark:/67531/metapth1259083/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Bit Cleaner, patent, February 17, 1920; (https://texashistory.unt.edu/ark:/67531/metapth1259083/m1/1/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .