He founded Kemtron Corporation, a manufacturer of model railway cars, locomotives, parts (especially for scratchbuilders), and accessories.
In 1960 it was the world's largest maker of scale railroad kits, producing one million parts a year and selling them worldwide to enthusiasts as far away as India and Australia.
Lawrence S. Kazoyan (b. November 7, 1931 – d. April 15, 2000, Palm Beach), a retired aerospace engineer, acquired Kemtron in 1970, and moved it from Fresno to Los Angeles.
T. Fredrick Hill and Wayne Lyndon, owners of The Original Whistle Stop Inc., acquired Kemtron in 1978 and moved it to Sacramento.
Former Kemtron employee John Anderson later went on to found Associated Brass Products, Inc., maker of the Cal-Scale line.
On March 6, 1941, Levin married Roselle Arax Bezazian (1909–2008) in Cook County, Illinois, a pianist who graduated from Oberlin Conservatory of Music.