Vapor-Burner, patent, January 5, 1909; (https://texashistory.unt.edu/ark:/67531/metapth512744/m1/1/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .
Vapor-Burner, patent, January 5, 1909; (https://texashistory.unt.edu/ark:/67531/metapth512744/m1/1/: accessed July 4, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu.; .