Abstract Records, 1933-1961, of patents issued to Michigan College of Mining and Technology in Houghton, Michigan relating to copper extrusion research conducted by university faculty members from the Department of Mechanical Engineering: Rex R. Seeber, Griffith N. Thresher and Almon P. Young. From 1934-1956 the extrusion research known as the Copper Fittings Research Project resulted in the issuance of 3 U.S. Patents, 15 foreign patents and 2 U.S. patent applications. Records include correspondence,...

Abstract Papers, 1932, about the copper tariff of 1932, a protectionist measure to support the copper producers in the United States. Includes a statement to stockholders of copper mining companies from A. E. Peterman, the attorney for the Calumet and Hecla Consolidated Copper Company, encouraging them to support the tariff and contact their members of Congress. Also includes a brochure, "Some facts about copper and its need for tariff protection," prepared by A. E. Peterman with support from copper...