Julius Kahn (inventor)

Julius Kahn (March 8, 1874 – November 4, 1942) was an American engineer, industrialist, and manufacturer. He was the inventor of the , a reinforced concrete engineering technique for building construction. The Kahn system, which he patented in 1903, was used worldwide for housing, factories, offices and industrial buildings. He formed the as a manufacturing source for his inventions. He also founded United Steel Company and was chairman of Truscon Laboratories.