Medical equipments and medical tools, namely, stethoscopes, hearing aid devices, therapeutic instruments for hearing loss, pulsimeters, oxygen masks, audiometers, transcutaneous electro nerve stimulator, electrocardiographs, echo-electrocardiographs, phonocardiograph, EEG recorders, gastroscopes, respiratory masks for medical purposes, and surgical masks; medical instruments for testing vision, namely, ophthalmometers and ophthalmoscopes; medical instruments, namely, alarms and sensors to be ...