Water-Heating Attachment for Internal-Combustion Motors.
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Water-Heating Attachment for Internal-Combustion Motors., patent, December 7, 1920; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1257144/: accessed July 11, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.