The Trussed Concrete Steel Company was founded by the engineer born in which German town in 1874?
Julius Kahn (inventor) Kahn was born in Münstereifel, Germany, March 8, 1874. He was raised in Detroit, Michigan. Kahn came to Detroit in 1881 from Germany with his family (five brothers and two sisters) when he was six years old, settling first in Baltimore, Maryland in 1880. His father Joseph (1860–1924) was a rabbi and ran a restaurant. Kahn helped in his father's restaurant business and sold newspapers. His mother Rosalie was skilled in music and art. Kahn went to the Detroit Public Schools where he received his elementary schooling, doing the normal four-year high school in three years.
Carl Friden Carl Friden (April 11, 1891 – April 29, 1945) was the Swedish born, American mechanical engineer and businessman who founded the Friden Calculating Machine Company (Friden, Inc.).