Martin, Edward Gale; Miller, Joseph Sherman & Hurt, William Hurt.Spring Support For Vehicle Tops,
patent,
May 31, 1904;
[Washington D.C.].
(https://texashistory.unt.edu/ark:/67531/metapth508142/m1/1/:
accessed June 22, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.;
crediting UNT Libraries Government Documents Department.