AbstractPapers of a Norwegian-born inventor and engineer who emigrated in 1910 and worked for the Great Northern Railway and the Minnesota Highway Department. Correspondence and blueprints of his spring spikes and variable twisted track spikes. See…
Includes a clipping and a pamphlet concerning the Aasen Corporation of America, Stoughton, Wisconsin, and its Norwegian founder. Aasen invented several military devices including the hand grenade, deep water bomb, modern trench mortar, and the air…
