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Fenner, Ferdinand A. & Power, John H.Improvement in Apparatus for Destroying the Cutting Ant.,
patent,
August 3, 1875;
[Washington D.C.].
(https://texashistory.unt.edu/ark:/67531/metapth166461/:
accessed June 12, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu;
crediting UNT Libraries Government Documents Department.