TULSA, Okla. - Advanced Industrial Devices (AID) has appointed Greg Harper as senior vice president, sales and marketing. Harper has more than 35 years of experience in the electric motor, controls, automation and variable frequency drive markets. Formerly, Harper has served as vice president of electric motors at Worldwide Electric and target marketing manager at Siemens. Harper’s vast experience will be a key asset to drive AID’s growth while maintaining innovative product offerings in the motor, controls and automation industry.