10 INSTRUMENTS FOR MEASURING AND OBSERVING BIOMEDICAL PHENOMENA, NAMELY ELECTROCARDIOGRAPHS PHONOCARDIOGRAPHS, MEDICAL TELEMETERING EQUIPMENT, NAMELY APPARATUS FOR MEASURING BIOMEDICAL PHENOMENA AND TRANSMITTING SAME THROUGH WIRE OR WIRELESS COMMUNICATION SYSTEMS; MULTICHANNEL RECORDING APPARATUS FOR SIMULTANEOUS RECORDING OF BIOMEDICAL PHENOMENA SUCH AS HEART RATE AND BLOOD PRESSURE; BIOMEDICAL ELECTRODES AND TRANSDUCERS FOR MEASUREMENT AND DETECTION OF BIOMEDICAL PHENOMENA, APPARATUS FOR MONITORING VITAL SIGNS OF HOSPITAL PATIENTS, AND NEONATAL MONITORING APPARATUS; FETAL HEARTBEAT DETECTORS DEFIBRILLATORS FOR VENTRICULAR FIBRILLATION; MEDICAL DIGONOSTIC APPARATUS USING ULTRASONIC PULSE ECHO DISPLAY, COMBINATION CARDIOGRAPH AND COMPUTER-AIDED CARDIOGRAPH DATA ANALYSIS MACHINE; AND STRUCTURAL PARTS FOR ALL THE ABOVE EQUIPMENT