Box 1

Scope and Content From the Collection: This collection contains personal papers and correspondence belonging to Werner J. Blanchard co-founder of Vandalia, Ohio based Engineering Products Inc. Also included in this collection are business documents from 1937-1940 when the small corporation was purchased by General Motors Corp. and renamed Aeroproducts. The collection also contains patent information and blueprints for the inventions of W.J. Blanchard as well as marketing information for propellers designed by the company....