9 Ultrasonic testing apparatus for scanning aircraft structures, pipe work, power generation equipment, safety critical transport infrastructure, oil extraction and processing plant, and other safety critical components for flaws, thickness or corrosion, namely, ultrasonic flaw detectors; hand held ultrasonic test instruments used to test or inspect aircraft structures, pipe work, power generation equipment, safety critical transport infrastructure, oil extraction and processing plant, and other safety critical components; ultrasonic measuring apparatus for scanning aircraft structures, pipe work, power generation equipment, safety critical transport infrastructure, oil extraction and processing plant, and other safety critical components for flaws, thickness or corrosion, namely, ultrasonic scanners; ultrasonic probes and sensors for material inspection; ultrasonic thickness gauges; ultrasonic coating gauges; ultrasonic transducers; ultrasonic coupling; computer programs for operating and monitoring ultrasonic testing apparatus; and parts and fittings for all the aforesaid goods