Scientific, nautical, surveying, photographic, cinematographic, optical, acoustic, weighing, measuring, signalling, checking, rescue and teaching apparatus, instruments, installations and systems, namely, ultrasonic sensors, ultrasound flow sensors, ultrasound probes, all not for medical use in the field of ultrasound technology; distance, movement, quality and material detection, measuring and testing technology, namely, ultrasonic sensors, ultrasonic instrumentation for testing machines, ul...