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1 ene 1816 año - Invention of the stethoscope

Descripción:

René Laennec invented the stethoscope in 1816. It was monaural and composed of a wooden tube. This invention meant physicians could now perform auscultation without direct physical contact with the patient.

Añadido al timeline:

History of Biotechnology

ByIsabella Santoni
18 ene 2018
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434

fecha:

1 ene 1816 año
Ahora mismo
~ 208 years ago
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