ultrasound doppler listening device for hearing intrauterine heartbeats

Breast pumps; Fetal heartbeat monitors; Fetal pulse monitors; Heart rate monitoring apparatus; Meters for medical use, namely, for heart rate; Meters for medical use, namely, for fetal heart rate; Meters for medical use, namely, for infant heart rate; Meters for medical use, namely, for baby heart rate; Pulse measuring devices; Pulse meters; Pulse rate monitors; Thermometers for medical purposes; Thermometers for medical use; Ultrasound diagnostic apparatus; Ultrasound probe for medical use; ...