This U.S. industry comprises establishments primarily engaged in repairing and maintaining (without retailing) electronic and precision equipment (except consumer electronics, computers and office machines, and communications equipment). Establishments in this industry repair and maintain equipment, such as medical diagnostic imaging equipment, measuring and surveying instruments, laboratory instruments, and radar and sonar equipment. Cross-References. Establishments primarily engaged in-- ? Rewinding armatures and rebuilding electric motors on a factory basis--are classified in U.S. Industry 335312, Motor and Generator Manufacturing; ? Repairing stereo and other consumer electronic equipment--are classified in U.S. Industry 811211, Consumer Electronics Repair and Maintenance; ? Repairing computers and office machines--are classified in U.S. Industry 811212, Computer and Office Machine Repair and Maintenance; and ? Repairing communications equipment--are classified in U.S. Industry 811213, Communication Equipment Repair and Maintenance.