Composition of Matter for Saving Coal During Combustion.
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Composition of Matter for Saving Coal During Combustion., patent, June 11, 1895; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth174013/: accessed July 10, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.