RobertBarr.com
About RobertBarr.com
Founded by Robert Barr in 1976. Barr was already known for his work on screw design and had a barrier screw patent granted in 1970. His background was as a development engineer working for a leading extruder manufacturer in New Jersey, Hartig division of Midland Ross, Corp. In 1972 he left Hartig to form, Barr Polymer Systems, Inc. The primary focus of this company was designing and manufacturing extruders and blow molding machines.[[Category:]]
