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Preston, C. C.Improved Apparatus for Fumigating Plants.,
patent,
December 17, 1867;
[Washington D.C.].
(https://texashistory.unt.edu/ark:/67531/metapth165144/:
accessed April 27, 2024),
University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu;
crediting UNT Libraries Government Documents Department.