Littmann Stethoscopes Comparison Charts

It all started with a paper tube. In 1816, French physician Rene Laennec invented the first stethoscope using a long, rolled paper tube to funnel the sound from the patient's chest to his ear. ... He also called his method of using the stethoscope"auscultation"
The Littmann stethoscope

David Littmann, M.D., (July 28, 1906 – January 1, 1981) was an American cardiologist born in Chelsea Massachusetts (born to Ukrainian immigrants from Novogrod Wolyn aka Zwill Ukraine formally the Russian Empire, Issac Litman and Sadie Zewat Litman)

Todays stethoscopes have over 200 years of refinement 3M™ Littmann® Stethoscopes are the diagnostic instruments that millions of medical professionals around the world use and depend on every day. Clinicians who take the time to learn and practice auscultation are rewarded with a valuable skill that helps them quickly assess, diagnose, and monitor their patients.  

Littmann Stethoscope Comparison Chart
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