Joy Manufacturing schematics (see also box 3; from 14 BU Joy Loading Machine Manual, five motor blueprints/schematics, most marked as washable mine paper) [oversize], 1949, undated

Joy Manufacturing schematics (see also box 3; from 14 BU Joy Loading Machine Manual, five motor blueprints/schematics, most marked as washable mine paper) [oversize], 1949, undated, Box: 4, Folder: 2. Thurman I. Miller Papers, A&M 4297. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/140371 Accessed November 24, 2024.