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HYDROPHONES; ULTRASOUND SOURCES, NAMELY, [ PIEZOLELECTRIC ] * piezoelectric * POLYMER AND CERAMIC TRANSDUCERS FOR PRODUCING ULTRASOUND; IMAGING DEVICES USING ULTRASOUND; DETECTORS FOR DETECTING AND MEASURING ULTRASOUND FIELDS; COMPUTERIZED SYSTEMS COMPRISED OF COMPUTERS, SENSORS, CONTROLLERS, [ ADAPTORS ] * adapters * AND APPLICATION SYSTEMS FOR CALIBRATING HYDROPHONES AND ULTRASOUND SOURCES; IMAGING DEVICES USING ULTRASOUND

MEDICAL DIAGNOSTIC IMAGING DEVICES USING ULTRASOUND; NEEDLE HYDROPHONES FOR MEDICAL DIAGNOSTIC USE; ULTRASOUND SOURCES FOR MEDICAL DIAGNOSTIC USE, NAMELY, PIEZOELECTRIC POLYMER AND CERAMIC TRANSDUCERS; MEMBRANE HYDROPHONES IN THE NATURE OF DETECTORS FOR MEDICAL DIAGNOSTIC USE

calibration of hydrophones; calibration of ultrasound sources; namely, piezoelectric polymer and ceramic transducers; consultancy, research and development of services in the field of ultrasound