Improvement in Heater and Feeder for Steam-Boilers.
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Improvement in Heater and Feeder for Steam-Boilers., patent, December 11, 1877; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth166732/: accessed April 25, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.