Ultrasound inspection devices for non-medical, non-destructive testing; Inspection machines for the physical inspection of delamination in concrete structures, namely devices using microphones to detect changes in sound frequency spectra to identify and map delamination; Electronic ultrasonic test equipment, namely, ultrasonic flaw detectors, thickness testers and hardness testers, for non-medical use; Computer hardware for use in nondestructive testing of concrete str...