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Hazlewood, George W. & Robinson, Henry C.Hitching Device,
patent,
November 27, 1906;
[Washington D.C.].
(https://texashistory.unt.edu/ark:/67531/metapth513896/:
accessed June 6, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu;
crediting UNT Libraries Government Documents Department.