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Moore, Francis A. & Green, William Edward.Car Coupling,
patent,
July 24, 1906;
[Washington D.C.].
(https://texashistory.unt.edu/ark:/67531/metapth513174/:
accessed July 5, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.;
crediting UNT Libraries Government Documents Department.