Ball and Roller Bearing Company - Credit: Wikimedia Commons
Ball and Roller Bearing Company - Credit: Wikimedia Commons
The Ball and Roller Bearing Company, also known as American Family Crafts and the Joseph Nutt House and Machine Shop, is a historic industrial complex at 20-22 Maple Avenue in Danbury, Connecticut. Developed mainly in the early 20th century, the factory is most notable as the location where Lewis Heim invented the modern grinding machine, which revolutionized the manufacture of machine parts. The complex was listed on the National Register of Historic Places on August 25, 1989. It now houses a church and social service agencies. Read more on Wikipedia
Source: en.wikipedia.org