Non-Freezing Water-Supply System., patent, December 2, 1913; (https://texashistory.unt.edu/ark:/67531/metapth858026/m1/1/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .
Non-Freezing Water-Supply System., patent, December 2, 1913; (https://texashistory.unt.edu/ark:/67531/metapth858026/m1/1/: accessed July 15, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .