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McIntosh, John L.; Bacon, Edward Hamlin & Vail, Theron.Vehicle-Brake.,
patent,
March 5, 1885;
[Washington D.C.].
(https://texashistory.unt.edu/ark:/67531/metapth170964/:
accessed July 17, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.;
crediting UNT Libraries Government Documents Department.