Cylinder-Grinding Attachment For Lathes Page: 2 of 4
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Cylinder-Grinding Attachment For Lathes, patent, April 6, 1920; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1258667/m1/2/: accessed June 23, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.