Rotary Drilling Apparatus dated November 5, 1918
Creation Information
Context
Audiences
patent as a primary source within our collections. Researchers, educators, and students may find this patent useful in their work.
We've identified thisContact Us
Subjects
Mapped Locations
Rotary Drilling Apparatus dated November 5, 1918, patent, November 5, 1918; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth1256630/: accessed June 21, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.