Dr. Dhaval Makwana (born on January 8, 1989) of Jamnagar, Gujarat, made 28.5inch long handmade functional binaural stethoscope that helps to examine blood pressure, heart rate, and respiration rate, on February 12, 2016.
HANDMADE POCKET STETHOSCOPE
Dr. Dhaval Makwana (born on January 8, 1989) of Jamnagar, Gujarat, made 28.5inch long handmade functional binaural stethoscope that helps to examine blood pressure, heart rate, and respiration rate, on February 12, 2016.