The company was building an automatic slot-milling machine in 1907. The machine was used to cut 140 slots in bronze rings for knitting machines. The firm was listed as manufacturer of bench drills and sensitive drills in 1920.
Information Sources
- American Machinist, Vol. 30, No. 52, Dec. 26, 1907, Pg. 994.
- Sterling's Marine Catalog, Sterling-Cooper Corp., 1920, Pg. 205, 207.