Photographer's Changing and Developing Box.
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patent as a primary source within our collections. Researchers, educators, and students may find this patent useful in their work.
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Photographer's Changing and Developing Box., patent, October 10, 1893; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth173526/: accessed May 21, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.