R.M. Barton Co. Inc. suppled milling machines and marketed products under the Bartmill brand name. The company also provided replacement and specialty cutter milling drums. Their product line is used for pavement cutting, removal and recycling operations. R.M. Barton Co. was founded in 1986 and was based in Oklahoma City, Oklahoma. As of January 2000, R.M. Barton Co. Inc. is a subsidiary of CMI Corporation. Some assets were acquired by the Terex Corporation.