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Purdue professor urges tax exemption for gasoline mixed with grain alcohol. Washington, D.C., May 23. Harold M. Jacklin, Professor of Automotive Engineering at Purdue University, and working in collaboration with the Chicago Moto Club, told a Senate Finance Subcommittee today that he favored adoptio
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Credit linePurdue professor urges tax exemption for gasoline mixed with grain alcohol. Washington, D.C., May 23. Harold M. Jacklin, Professor of Automotive Engineering at Purdue University, and working in collab. 1939-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.