9 ULTRASONIC NON-DESTRUCTIVE TESTING AND INSPECTION EQUIPMENT, NAMELY, ULTRASONIC SIGNAL GENERATORS, ULTRA-SONIC SIGNAL RECEIVERS, SIGNAL PROCESSING UNITS, AND ULTRASONIC PROBES FOR GENERATING OR DETECTING ULTRA-SONIC WAVES IN STRUCTURES SUCH AS PIPELINES, VESSELS, STORAGE TANKS, METAL BRIDGES, OR SHIPS, TO DETECT FLAWS AND DEGRADATIONS; COMPUTER SOFTWARE FOR INTERPRETING ULTRASONIC SIGNALS FROM ULTRASONIC NON-DESTRUCTIVE TESTING AND INSPECTION EQUIPMENT USED TO DETECT FLAWS AND DEGRADATIONS IN STRUCTURES SUCH AS PIPELINES, VESSELS, STORAGE TANKS, METAL BRIDGES, OR SHIPS